| Mary K. "Kate" Molloy | Kenton Circuit Court | – |
| Alvin R. Kacin | Fourth Judicial District Court | – |
| Matthew Joseph Kacsmaryk | N.D. Texas | 2019– |
| James A. Kaddo | Superior Court of California, County of Los Angeles | 1999– |
| Julie Kaelin | Jefferson Circuit Court | – |
| Frederick William Kaess | E.D. Michigan | 1960–1979 |
| Elena Kagan | Supreme Court | 2010– |
| Mark M Kagan | New York City Civil Court, Kings County | – |
| Wade A. Kagarise | Court of Common Pleas of Blair County | – |
| Allen M. Kagey | Kan. | 1950–1951 |
| Tehilah HR Kahan | New York City Civil Court, Kings County | – |
| Nadia Kahf | Superior Court of New Jersey, Passaic Vicinage | – |
| Benjamin A. Kahn | Bankr. M.D. North Carolina | 2014– |
| Charles J. Kahn | N.D. Florida | 2011– |
| Harold Ernest Joseph Kahn | Superior Court of California, County of San Francisco | 2001– |
| Lawrence E. Kahn | N.D. New York | 1996– |
| Maria Araujo Kahn | Second Circuit | 2023– |
| Francis A KahnIII | New York Court of Claims | – |
| Erik Michael Kaiser | Superior Court of California, County of Riverside | 1990–2007 |
| Jeffrey N. Kaitcer | Texas 322nd District Court | – |
| Edward Y. Kakita | Superior Court of California, County of Los Angeles | 1980–2000 |
| Joseph A. Kalashian | Superior Court of California, County of Tulare | 1993–2014 |
| Girard Edward Kalbfleisch | N.D. Ohio | 1959–1990 |
| Gregory Kalbfleisch | Idaho District Court | – |
| David C. Kalemkarian | Superior Court of California, County of Fresno | 2005–2020 |
| Sharon Louise Kalemkiarian | Superior Court of California, County of San Diego | 2014– |
| Lance Kalik | Superior Court of New Jersey, Somerset/Hunterdon/Warren Vicinage | – |
| Edmund H. Kalil | Eaton Municipal Court | – |
| Joseph R. Kalin | Superior Court of California, County of Los Angeles | 1981–1999 |
| Maria N. Kalis | Muskingum County Court of Common Pleas | – |
| Thomas J. Kalitowski | Minn. Ct. App. | 1987–2014 |
| Alan S. Kalkin | Superior Court of California, County of Los Angeles | 2000–2008 |
| Abdul K. Kallon | N.D. Alabama | 2010–2022 |
| Harry Ellis Kalodner | Third Circuit | 1946–1977 |
| Upinder Singh Kalra | Superior Court of California, County of Los Angeles | 2010– |
| Richard P. Kalustian | Superior Court of California, County of Los Angeles | 1985–2001 |
| Timmy Pat Kam | Superior Court of California, County of Solano | 2010– |
| Craig S. Kamansky | Superior Court of California, County of San Bernardino | 1988–2006 |
| Nicholas S. Kamau | Court of Common Pleas of Philadelphia County | – |
| Bernard J. Kamins | Superior Court of California, County of Los Angeles | 1986–2007 |
| Michelle M. Kaminsky | Fairfax Circuit Court | – |
| Carl J. Kamm | Erie County Municipal Court | – |
| Edward S. Kampf | N.D. New York | 1946–1948 |
| Timothy Alan Kams | Superior Court of California, County of Fresno | 1998– |
| Bertram Teruo Kanbara | Haw. Ct. App. | 1980–1984 |
| M. John Kane IV | Okla. | 2019– |
| John L. Kane Jr. | D. Colorado | 1977– |
| Anthony T. Kane | N.Y. App. Div. | 2002–2009 |
| John Kintzing Kane | E.D. Pennsylvania | 1846–1858 |
| Robert F. Kane | Cal. Ct. App. | 1971–1979 |
| Stephen J.. Kane | Cal. Ct. App. | 2006–2017 |
| T Paul Kane | N.Y. App. Div. | 1972–1990 |
| Yvette Kane | M.D. Pennsylvania | 1998– |
| Gale E. Kaneshiro | Superior Court of California, County of San Diego | 1998–2020 |
| Michael Stephen Kanne | Seventh Circuit | 1987–2022 |
| A O. Kanner | Fla. Dist. Ct. App. | 1957–1964 |
| Michael A. Kanner | Superior Court of California, County of Los Angeles | 2000–2003 |
| Kristina C. Kantar | Lake Superior Court | – |
| Frederick J. Kapala | N.D. Illinois | 2007– |
| Robert J. Kapelke | Colo. Ct. App. | 1994–2005 |
| Jon Nick Kapetan | Superior Court of California, County of Fresno | 2003– |
| Lawrence Kapiloff | Superior Court of California, County of San Diego | 1982–1994 |
| Benjamin Kaplan | Mass. | 1972–1981 |
| Bruce J. Kaplan | Superior Court of New Jersey, Middlesex Vicinage | – |
| David J Kaplan | Bronx County Family Court | – |
| Deborah A Kaplan | New York Supreme Court, 1st Judicial District | – |
| Elaine D Kaplan | Fed. Claims | 2013– |
| Jeff Kaplan | N.D. Texas | 1994–2014 |
| Leon S. Kaplan | Superior Court of California, County of Los Angeles | 1987–2008 |
| Lewis A. Kaplan | S.D. New York | 1994– |
| Michael B. Kaplan | Bankr. D. New Jersey | 2014– |
| Michael J. Kaplan | Bankr. W.D. New York | 1991– |
| Sarika Kapoor | New York Court of Claims | – |
| Carol Ronning Kapsner | N.D. | 1998 |
| Francis P. Kapusinski | Superior Court of New Jersey, Essex Vicinage | – |
| Nicholas A. Karaffa | Clark Circuit Court | – |
| Deborah H Karalunas | New York Supreme Court, 5th Judicial District | – |
| Kenneth M. Karas | S.D. New York | 2004– |
| Imre Karaszegi Jr. | Superior Court of New Jersey, Passaic Vicinage | – |
| Reema Sethi Kareer | Superior Court of New Jersey, Somerset/Hunterdon/Warren Vicinage | – |
| Jonathan Karesh | Superior Court of California, County of San Mateo | 2001–2020 |
| Joseph Karesh | Superior Court of California, County of San Francisco | 1961–1978 |
| Frederick B. Karl | Fla. | 1977–1978 |
| Craig David Karlan | Superior Court of California, County of Los Angeles | 2003– |
| Kristina A Karle | Ontario County Court | – |
| Janice Miller Karlin | Bankr. D. Kansas | 2002–2018 |
| Lawrence K. Karlton | E.D. California | 1979–2015 |
| Lloyd A. Karmeier | Ill. | 2004 |
| Jill Karmy | Cowlitz County Superior Court | – |
| Thenis Karnezis | Ill. App. Ct. | 2002–2015 |
| Curtis Edward Andrew Karnow | Superior Court of California, County of San Francisco | 2005– |
| John Karns | Ill. App. Ct. | 1974–1987 |
| Jill J. Karofsky | Wis. | 2020– |
| Kent E. Karohl | Mo. Ct. App. | 1997–2000 |
| Benjamin W. Karpf | Superior Court of Georgia, Eastern Judicial Circuit | – |
| Brad Karren | Nineteenth West Judicial Circuit Court | – |
| Robert L. Karwacki | Md. | 1990–1998 |
| Shiro Kashiwa | Federal Circuit | 1982–1986 |
| Nidhi Kashyap | Milwaukee County Circuit Court | – |
| Bruce Kasold | Veterans Claims | 2003– |
| Joseph F Kasper | New York City Civil Court, Queens County | – |
| Bentley Kassal | N.Y. App. Div. | 1982–1993 |
| Todd Lee Kassaw | Texas 159th District Court | – |
| Michael J. Kassel | Superior Court of New Jersey, Camden Vicinage | – |
| Abraham P. Kassis | Court of Common Pleas of Northampton County | – |
| Robert F. Kaster | Superior Court of California, County of Siskiyou | 1991–2008 |
| Mustafa Kasubhai | D. Oregon | 2018– |
| Mustafa Taher Kasubhai | D. Oregon | 2024– |
| Kenly Kiya Kato | C.D. California | 2023– |
| Kenly Kiya Kato | C.D. California | 2014– |
| John CV Katsanos | New York Supreme Court, 11th Judicial District | – |
| Gregory George Katsas | D.C. Circuit | 2017– |
| Aaron Hokin Katz | Superior Court of California, County of San Diego | 2003– |
| Burton S. Katz | Superior Court of California, County of Los Angeles | 1981–1987 |
| David A. Katz | N.D. Ohio | 1994–2016 |
| David B. Katz | Superior Court of New Jersey, Hudson Vicinage | – |
| Elizabeth D. Katz | Bankr. D. Massachusetts | 2017– |
| Joette Katz | Conn. App. Ct. | 2006–2011 |
| Joseph A. Katz | Superior Court of California, County of San Bernardino | 1966–1986 |
| Keri Greer Katz | Superior Court of California, County of San Diego | 2014– |
| Marvin Katz | E.D. Pennsylvania | 1983–2010 |
| Michael L Katz | New York City Civil Court, New York County | – |
| Steven M. Katz | Superior Court of California, County of Kern | 2008–2019 |
| Theodore H Katz | S.D. New York | 1991–2012 |
| Gary Katzmann | Mass. App. Ct. | 2004– |
| Gary S. Katzmann | Int'l Trade | 2016– |
| Robert A. Katzmann | Second Circuit | 1999–2021 |
| Bruce William Kauffman | E.D. Pennsylvania | 1997–2009 |
| Bruce William Kauffman | Pa. | 1980–1982 |
| Jeffrey Clayton Kauffman | Superior Court of California, County of Solano | 2018– |
| C. Bernard Kaufman | Superior Court of California, County of Los Angeles | 1987–1994 |
| Frank Albert Kaufman | D. Maryland | 1966–1997 |
| Herbert C. Kaufman | Cal. Ct. App. | 1954–1987 |
| Ira R. Kaufman | Superior Court of California, County of Plumas | 2001–2016 |
| Irving Robert Kaufman | Second Circuit | 1961–1992 |
| Marcus Maurice Kaufman | Cal. | 1970–1990 |
| Michael D. Kaufman | Sandusky Municipal Court | – |
| Nathan J. Kaufman | Mich. Ct. App. | 1975–1982 |
| Samuel Hamilton Kaufman | S.D. New York | 1949–1960 |
| Shelley Lynn Kaufman | Superior Court of California, County of Los Angeles | 2014– |
| Victoria S. Kaufman | Bankr. C.D. California | 2006– |
| Dan Kaufmann | Superior Court of California, County of Los Angeles | 1976–1986 |
| Harold C. Kaufold | Superior Court of Georgia, Oconee Judicial Circuit | – |
| Yvonne Kauger | Okla. | 1984 |
| Robert H. Kaul | Kan. | 1965–1977 |
| John S Kaull | N.D. West Virginia | 2001–2015 |
| Otto Kaus | Cal. | 1961–1985 |
| Stephen David Kaus | Superior Court of California, County of Alameda | 2012– |
| E Michael Kavanagh | N.Y. App. Div. | 2006– |
| Mary A Kavanagh | New York City Civil Court, Richmond County | – |
| Thomas Giles Kavanagh | Mich. Ct. App. | 1965–1969 |
| Thomas M. Kavanagh | Mich. | 1958–1984 |
| Brett M. Kavanaugh | Supreme Court | 2018– |
| Ken M. Kawaichi | Superior Court of California, County of Alameda | 1980–2003 |
| Alan Cooke Kay | D. Hawaii | 1986–2024 |
| Kathleen Kay | W.D. Louisiana | 2007– |
| Laurence Donald Kay | Cal. Ct. App. | 1983–2005 |
| Lawrence Donald Kay | Cal. Ct. App. | 1981–2005 |
| Ben T. Kayashima | Superior Court of California, County of San Bernardino | 1980–2001 |
| William Joseph Kayatta Jr. | First Circuit | 2013– |
| Judith Smith Kaye | N.Y. | 1983–2008 |
| David Gregory Kays | W.D. Missouri | 2008– |
| Scott L. Kays | Superior Court of California, County of Solano | 2002–2003 |
| Debra Jean Kazanjian | Superior Court of California, County of Fresno | 2001– |
| George P. Kazen | S.D. Texas | 1979–2018 |
| John A. Kazen | S.D. Texas | 2018– |
| John Andrew Kazen | S.D. Texas | 2024– |
| Christopher R. Kazlau | Superior Court of New Jersey, Bergen Vicinage | – |
| William Colbert Keady | N.D. Mississippi | 1968–1989 |
| John F. Keane | Superior Court of California, County of Sierra | 1963–1983 |
| Lynn M Keane | New York Supreme Court, 8th Judicial District | – |
| Molly B. Keane | Douglas County District Court | – |
| Frances A. Kearney | Superior Court of California, County of Placer | 1998–2018 |
| Jerome T. Kearney | E.D. Arkansas | 2010– |
| Mark A. Kearney | E.D. Pennsylvania | 2014– |
| Robert James Kearney | Superior Court of California, County of San Diego | 2008– |
| Deborah S Kearns | Albany County Surrogate's Court | – |
| Amalya Lyle Kearse | Second Circuit | 1979– |
| Kenneth B. Keating | N.Y. | 1966–1969 |
| Maura A Keating | Bronx County Family Court | – |
| Phyllis M. Keaty | La. Ct. App. | 2010– |
| Bryan D. Keberlein | Winnebago County Circuit Court | – |
| Richmond Bowling Keech | D.D.C. | 1947–1986 |
| Robert H. Keefe | Superior Court of California, County of Orange | 1998–2000 |
| William John Keefe | Customs Ct. | 1933–1947 |
| Maureen M. Keegan | Connecticut Superior Court | – |
| Mary Lou Keel | Tex. Crim. App. | 2017– |
| Irene Patricia Murphy Keeley | N.D. West Virginia | 1992– |
| Terence J. Keeley | Superior Court of California, County of Sutter | 1978–1993 |
| Walter Angus Keeling | W.D. Texas | 1942–1945 |
| Michelle Keely | Tulsa County District Court | – |
| Eric Alfred Keen | Superior Court of California, County of Riverside | 2018– |
| Barbara Milano Keenan | Fourth Circuit | 2010– |
| Barbara Milano Keenan | Va. | 1991–2010 |
| Barbara Milano Keenan | Va. Ct. App. | 1985–1991 |
| John Fontaine Keenan | S.D. New York | 1983–2024 |
| William B. Keene | Superior Court of California, County of Los Angeles | 1965–1984 |
| Christy Virginia Keeny | Superior Court of California, County of Los Angeles | 2012– |
| Judith Nelsen Keep | S.D. California | 1980–2004 |
| David C. Keesler | W.D. North Carolina | 2004– |
| Robert Ernest Keeton | D. Massachusetts | 1979–2006 |
| William D. Keeton | Idaho | 1949–1959 |
| Katie B. Kegel | Milwaukee County Circuit Court | – |
| Russell D. Kegley | Portsmouth Municipal Court | – |
| Winston Sy Keh | Superior Court of California, County of San Bernardino | 2017– |
| Haig Kehiayan | Superior Court of California, County of Los Angeles | 1988–1998 |
| Christopher D. Kehler | Kosciusko Superior Court | – |
| Jill Kehn | Rensselaer County Family Court | – |
| Christopher Kehoe | Md. App. Ct. | 2009– |
| James W. Kehoe | S.D. Florida | 1979–1998 |
| James W. Kehoe | Fla. Dist. Ct. App. | 1977–1979 |
| L Paul Kehoe | N.Y. App. Div. | 2000–2006 |
| Sean O. Kehoe | Connecticut Superior Court | – |
| Earl S. Keim | Pa. | 1962–1963 |
| Duncan Wray Keir | Bankr. D. Maryland | 1993– |
| Damon Jerome Keith | Sixth Circuit | 1977–2019 |
| Lawrence J. Keith | Court of Common Pleas of Lawrence County | – |
| Peter M. Keith | Minn. | 1989–1998 |
| Clare Keithley | Superior Court of California, County of Butte | 2008–2021 |
| Julia Craig Kelety | Superior Court of California, County of San Diego | 2003– |
| Richard Boykin Kellam | E.D. Virginia | 1967–1996 |
| Kent M. Kellegrew | Superior Court of California, County of Ventura | 1999–2020 |
| Robert Joseph Kelleher | C.D. California | 1970–2012 |
| Thomas F. Kelleher | R.I. | 1966–1992 |
| Anne Walton Keller | Shaker Heights Municipal Court | – |
| Benjamin Franklin Keller | S.D. West Virginia | 1901–1921 |
| Chrstine E. Keller | Conn. App. Ct. | 2013– |
| Eddie T. Keller | Superior Court of California, County of El Dorado | 1989–2007 |
| James E. Keller | Ky. | 1999–2006 |
| Michelle M. Keller | Ky. | 2013– |
| Richard O. Keller | Superior Court of California, County of Alameda | 1998–2016 |
| Sharon Keller | Tex. Crim. App. | 1995 |
| William Duffy Keller | C.D. California | 1984–2025 |
| Clay M. Kellerman | Franklin Circuit Court | – |
| James Alexander Kelley Jr. | Superior Court of California, County of Fresno | 2009– |
| Walter DeKalb Kelley Jr. | E.D. Virginia | 2004–2008 |
| Angel Kelley | D. Massachusetts | 2021– |
| Chris Ann Kelley | New York Court of Claims | – |
| Donald E. Kelley | Colo. | 1967–1979 |
| Glenn E. Kelley | Minn. | 1981–1990 |
| John J Kelley | New York Supreme Court, 1st Judicial District | – |
| Kevin J. Kelley | Cuyahoga County Court of Common Pleas | – |
| Mary Page Kelley | D. Massachusetts | 2014– |
| Michael Cornell Kelley | Superior Court of California, County of Los Angeles | 2018– |
| Stephen D. Kelley | Superior Court of Georgia, Brunswick Judicial Circuit | – |
| Susan V Kelley | Bankr. E.D. Wisconsin | 2002–2012 |
| Craig M Kellison | E.D. California | 1988–2018 |
| Kimberly Kellogg-Martin | Logan County Family Court | – |
| Karen DeSanto Kellogg | Ashland County Court of Common Pleas | – |
| Michael K. Kellogg | Superior Court of California, County of Los Angeles | 2000–2018 |
| J Elizabeth Kellum | Ala. Crim. App. | 2009– |
| Paul Joseph Kelly Jr. | Tenth Circuit | 1992– |
| Aurel Maxey Kelly | Colo. Ct. App. | 1974–1990 |
| Chari L. Kelly | Tex. App. | 2019–2024 |
| Claire Rita Kelly | Int'l Trade | 2013– |
| Daniel Kelly | Vigo Superior Court | – |
| Daniel Kelly | Superior Court of New Jersey, Mercer Vicinage | – |
| Ernest L. Kelly | Superior Court of California, County of Los Angeles | 1970–1987 |
| Fallon Kelly | Minn. | 1970–1980 |
| Gregory J. Kelly | M.D. Florida | 2008– |
| Harry F. Kelly | Mich. | 1954–1971 |
| James McGirr Kelly | E.D. Pennsylvania | 1983–2005 |
| Jane Louise Kelly | Eighth Circuit | 2013– |
| John Kelly | Suffolk County District Court | – |
| John David Kelly | Eighth Circuit | 1998–1998 |
| John I. Kelly | Superior Court of California, County of Kern | 1988–2008 |
| John T.J. Kelly | Pa. Super. Ct. | 1985– |
| Kathleen Anne Kelly | Superior Court of California, County of San Francisco | 2003– |
| Kevin Kelly | Superior Court of New Jersey, Bergen Vicinage | – |
| Kevin C. Kelly | Connecticut Superior Court | – |
| Kevin F. Kelly | Court of Common Pleas of Delaware County | – |
| Kirsten F. Kelly | Mich. Ct. App. | 2000– |
| Marilyn Kelly | Mich. Ct. App. | 1989–1996 |
| Marilyn Jean Kelly | Mich. | 1997–2013 |
| Mary Elizabeth Kelly | Superior Court of California, County of Los Angeles | 2018– |
| Maureen P. Kelly | W.D. Pennsylvania | 2011– |
| Michael J. Kelly | Mich. Ct. App. | 2008– |
| Michael Marc Kelly | Superior Court of California, County of Orange | 2000– |
| Patricia J. Kelly | Superior Court of California, County of Santa Barbara | 2010–2018 |
| Patrick F. Kelly | D. Kansas | 1980–1996 |
| Percy R. Kelly | Or. | 1930–1949 |
| Peter J Kelly | New York Supreme Court, 11th Judicial District | – |
| Peter Michael Kelly | Tex. App. | 2019–2024 |
| R. K. Kelly | South Carolina Circuit Court | – |
| Robert F. Kelly | E.D. Pennsylvania | 1987– |
| Shawn T Kelly | New York Supreme Court, 12th Judicial District | – |
| Susan N. Kelly | Texas 54th District Court | – |
| Thomas J. Kelly | Rocky River Municipal Court | – |
| Thomas M. Kelly | Superior Court of California, County of Butte | 1998–2010 |
| Timothy James Kelly | D.D.C. | 2017– |
| Virginia C. Kelly | Ariz. Ct. App. | 2009– |
| William G KellyJr | Albany City Court | – |
| William M. Kelsay | Superior Court of California, County of Santa Cruz | 1985–1998 |
| Arthur D. Kelsey | Va. Ct. App. | 2002–2015 |
| Denham Arthur Kelsey | Va. | 2015– |
| Richard S. Kemalyan | Superior Court of California, County of Los Angeles | 2006– |
| Michael J. Kemerer | Mansfield Municipal Court | – |
| Christopher Kemp | 5th Judicial District Court | – |
| Margaret J. Kemp | Superior Court of California, County of San Mateo | 1987–2004 |
| Samuel Barnet Kemp | Haw. | 1938–1960 |
| Tammy Kemp | Texas 204th District Court | – |
| Terrence Peter Kemp | S.D. Ohio | 1987– |
| Elton Joe Kendall | N.D. Texas | 1992–2002 |
| Virginia Mary Kendall | N.D. Illinois | 2006– |
| Anthony E. Kendell | Miami County Municipal Court | – |
| Holly E. Kendig | Superior Court of California, County of Los Angeles | 2003– |
| Russ Harry Kendig | Bankr. N.D. Ohio | 2001– |
| Melanie Kendrick | Marion Superior Court | – |
| Frank Rowe Kenison | N.H. | 1946–1977 |
| Michael S. Kenitz | Washington County Circuit Court | – |
| Jo N. Kenna | W. Va. | 1933–1950 |
| Charles Brents Kennamer | N.D. Alabama | 1931–1936 |
| Franklin Elmore Kennamer | N.D. Oklahoma | 1925–1960 |
| Joyce L. Kennard | Cal. | 1988–2014 |
| Joyce L. Kennard | Cal. Ct. App. | 1988–1989 |
| Henry Harold Kennedy Jr. | D.D.C. | 1997– |
| Anthony McLeod Kennedy | Supreme Court | 1988–2018 |
| Cornelia Groefsema Kennedy | Sixth Circuit | 1979–2014 |
| Daryl Eugene Kennedy | Superior Court of California, County of Shasta | 2017– |
| David S. Kennedy | Bankr. W.D. Tennessee | 1980– |
| Donald R. Kennedy | Superior Court of California, County of Shasta | 1982–1994 |
| Harold Maurice Kennedy | E.D. New York | 1944–1952 |
| John F. Kennedy | Superior Court of California, County of Santa Clara | 1969–1985 |
| John S. Kennedy | Superior Court of New Jersey, Camden Vicinage | – |
| John W., Jr. Kennedy | Superior Court of California, County of San Bernardino | 1984–2000 |
| John William Kennedy | Superior Court of California, County of Contra Costa | 2001–2017 |
| Joy Kennedy | Cuyahoga County Court of Common Pleas | – |
| Kathleen Ann Kennedy | Superior Court of California, County of Los Angeles | 2000– |
| Mark Kennedy | Ala. | 1989–1999 |
| Meredith Kennedy | Texas 78th District Court | – |
| Natasha R. Kennedy | Logan County Family Court | – |
| Odessa Kennedy | New York City Civil Court, Kings County | – |
| Sean Kennedy | Court of Common Pleas of Philadelphia County | – |
| Sharon L. Kennedy | Ohio | 2012– |
| Tanya R Kennedy | New York Supreme Court, 1st Judicial District | – |
| Thomas Blake Kennedy | D. Wyoming | 1921–1957 |
| William H. Kennedy | Superior Court of California, County of San Diego | 1983–2009 |
| Maura A KennedySmith | Tompkins County Court | – |
| John P. Kennelly | Superior Court of California, County of Sierra | 2005–2015 |
| Matthew F. Kennelly | N.D. Illinois | 1999– |
| Thomas Martin Kennerly | S.D. Texas | 1931–1962 |
| Chad Francis Kenney Sr. | E.D. Pennsylvania | 2018– |
| Brian Kenney | Bankr. E.D. Virginia | 2011– |
| James Kenney | Md. App. Ct. | 1997–2007 |
| Robert F. Kennon | La. | 1945–1946 |
| Adam Kenny | Superior Court of New Jersey, Middlesex Vicinage | – |
| Charles Kenny | Superior Court of New Jersey, Hudson Vicinage | – |
| Michael Patrick Kenny | Superior Court of California, County of Sacramento | 2003– |
| Paul J Kenny | New York Supreme Court, 10th Judicial District | – |
| Raymond S. Kent | W.D. Michigan | 2015– |
| Robin M Kent | Nassau County Family Court | – |
| Samuel B. Kent | S.D. Texas | 1990–2009 |
| W. Wallace Kent | Sixth Circuit | 1970–1973 |
| Victor B Kenton | C.D. California | 2001–2015 |
| David Vreeland Kenyon | C.D. California | 1980–1997 |
| William Squire Kenyon | Eighth Circuit | 1922–1933 |
| Gregory Keosian | Superior Court of California, County of Los Angeles | 2002– |
| Dennis J. Keough | Superior Court of California, County of Orange | 2010– |
| Kathleen Ann Keough | Ohio Ct. App. | 2011– |
| John W. Kephart | Pa. | 1919–1940 |
| Chad A. Kepros | 6th Judicial District Court | – |
| Chad G. Kerkman | Kenosha County Circuit Court | – |
| Gary Ray Kerkorian | Superior Court of California, County of Fresno | 1990–2000 |
| Karla Diane Kerlin | Superior Court of California, County of Los Angeles | 2008– |
| John W. Kern Jr. | Tax Ct. | 1942–1971 |
| Cynthia S Kern | New York Supreme Court, 1st Judicial District | – |
| Marie Kern | Marion Superior Court | – |
| Terence C. Kern | N.D. Oklahoma | 1994– |
| Otto Kerner Jr. | Seventh Circuit | 1968–1974 |
| Otto Kerner Sr. | Seventh Circuit | 1939–1952 |
| Jeremy Daniel Kernodle | E.D. Texas | 2018– |
| Elizabeth S. Kerr | Tex. App. | 2017–2022 |
| Ewing Thomas Kerr | D. Wyoming | 1956–1992 |
| Karen Kerr | Suffolk County Family Court | – |
| Carl Kerrick | Idaho District Court | – |
| Juneal Kerrick | Idaho District Court | – |
| Frank Henry Kerrigan | N.D. California | 1924–1935 |
| Frank Henry Kerrigan | Cal. | 1923–1924 |
| Kathleen Kerrigan | Tax Ct. | 2012– |
| Kevin J Kerrigan | New York Supreme Court, 11th Judicial District | – |
| Cheryl Carolyn Kersey | Superior Court of California, County of San Bernardino | 2009– |
| Oliver D. Kessel | W. Va. | 1972–1972 |
| Richard W. Kessell | Superior Court of California, County of Santa Cruz | 1990–1993 |
| Steve Kessinger | Pontotoc County District Court | – |
| Donn Kessler | Ariz. Ct. App. | 2003– |
| Gladys Kessler | D.D.C. | 1994–2023 |
| Joan F. Kessler | Wis. Ct. App. | 2004– |
| Randall B. Kester | Or. | 1957–1958 |
| Winthrop Welles Ketcham | W.D. Pennsylvania | 1876–1879 |
| Roseann Ambrosia Ketchmark | W.D. Missouri | 2015– |
| Menis E. Ketchum II | W. Va. | 2009 |
| Raymond M. Kethledge | Sixth Circuit | 2008– |
| Edmund V. Keville | Mass. App. Ct. | 1972–1979 |
| Linda J Kevins | New York Supreme Court, 10th Judicial District | – |
| Hemant H. Kewalramani | C.D. California | 2017– |
| Alicia Key | Texas 483rd District Court | – |
| David McKendree Key | E.D. Tennessee | 1880–1895 |
| Dwayne Keyes | Superior Court of California, County of Fresno | 1983–1999 |
| Evelyn V. Keyes | Tex. App. | 2002– |
| Jeffrey J Keyes | D. Minnesota | 2008–2016 |
| Arlander Keys | N.D. Illinois | 1995–2009 |
| F Ray Keyser Sr. | Vt. | 1964–1975 |
| Kirtan K. Khalsa | D. New Mexico | 2014– |
| Abraham Khan | Superior Court of California, County of Los Angeles | 2000–2020 |
| Indira D Khan | New York City Civil Court, Queens County | – |
| Naazneen B. Khan | Superior Court of New Jersey, Essex Vicinage | – |
| Nisa J. Khan | Connecticut Superior Court | – |
| Payal Khandhar | Dane County Circuit Court | – |
| Mina Nami Khorrami | Bankr. S.D. Ohio | 2021–2035 |
| Nicole Khoury | Toledo Municipal Court | – |
| Nelly Khouzam | Fla. Dist. Ct. App. | 2008–2011 |
| Keith D Kibler | Wyoming County Court | – |
| Embry J. Kidd | M.D. Florida | – |
| Embry Jerode Kidd | Eleventh Circuit | 2025– |
| William Matthew Kidd | N.D. West Virginia | 1983–1998 |
| Winston Kidd | 7th Circuit Court District | – |
| Homer/ Alan Baird Kidwell | Haw. | 1975–1979 |
| Wayne L. Kidwell | Idaho | 1999–2004 |
| Elaine M. Kiefer | Superior Court of California, County of Riverside | 2009– |
| Rebecca A. Kiefer | Milwaukee County Circuit Court | – |
| Edward S. Kiel | D. New Jersey | 2019– |
| Edward Sunyol Kiel | D. New Jersey | 2024– |
| Carli Lynn Kierny | Eighth Judicial District Court | – |
| Jean Marie Kies | Milwaukee County Circuit Court | – |
| Diana L Kiesel | Pierce County Superior Court | – |
| Charlene P. Kiesselbach | Superior Court of California, County of San Francisco | 1998–2020 |
| Henry A. Kiker | N.M. | 1954–1958 |
| Tanner Kilander | Milwaukee County Circuit Court | – |
| Ashley Kilbane | Cuyahoga County Court of Common Pleas | – |
| Mary Eileen Kilbane | Ohio Ct. App. | 2005– |
| Sean M. Kilbane | Berea Municipal Court | – |
| Richard Kilbourne | La. Ct. App. | 1944–1945 |
| Thomas L. Kilbride | Ill. | 2000 |
| Paul J Kilburg | Bankr. N.D. Iowa | 2006– |
| Roger Joseph Kiley | Seventh Circuit | 1961–1974 |
| Joseph A. Kilgarif | Superior Court of California, County of San Diego | 1961–1983 |
| William W. Kilgarlin | Tex. | 1983–1988 |
| John C. Kilgore | Scott Circuit Court | – |
| John Francis Kilkenny | Ninth Circuit | 1969–1995 |
| Gail Killefer | Superior Court of California, County of Los Angeles | 2019– |
| Lewis M Killian | Bankr. N.D. Florida | 1986–2012 |
| John Milton Killits | N.D. Ohio | 1910–1938 |
| Lawrence M. Killoran | Superior Court of California, County of Humboldt | 2019– |
| Peter K. Killough | Md. | 2024– |
| Alexander Han Joong Kim | Texas 323rd District Court | – |
| Andrew C. Kim | Superior Court of California, County of Los Angeles | 2016– |
| Dorothy Chung-Soo Kim | Cal. Ct. App. | 2018– |
| Edward Kim | Superior Court of California, County of Tulare | 1978–1993 |
| Esther P. Kim | Superior Court of California, County of Los Angeles | 2019– |
| Frank S. Kim | Superior Court of California, County of San Joaquin | 1979–1991 |
| Hyun Chin Kim | Orange County Court | – |
| Jay Young Kim | New York Court of Claims | – |
| Judy H Kim | New York Supreme Court, 1st Judicial District | – |
| Julie Kim | Superior Court of New Jersey, Bergen Vicinage | – |
| Mark C. Kim | Municipal Court of California, County of Los Angeles | 1998–2000 |
| Marliese G. Kim | Superior Court of California, County of Santa Clara | 1998–2003 |
| Michele Jinhyun Kim | Bankr. S.D. Georgia | 2017– |
| Michelle C. Kim | Superior Court of California, County of Los Angeles | 2018– |
| Sallie Kim | N.D. California | 2015– |
| Steve Kim | C.D. California | 2016– |
| Young B. Kim | N.D. Illinois | 2010– |
| Catherine D. Kimball | La. | 1992–2013 |
| Dale A. Kimball | D. Utah | 1997– |
| Erik P. Kimball | Bankr. S.D. Florida | 2008– |
| Henry J. Kimball | N.Y. App. Div. | 1947–1959 |
| Monty Wayne Kimball | Texas 394th District Court | – |
| Ralph Kimball | Wyo. | 1921–1952 |
| Kelley T. Kimble | Texas 38th District Court | – |
| Joyce V. Kimbler | Medina County Court of Common Pleas | – |
| Lynnette C. Kimmins | D. Arizona | 2016– |
| Milton G. Kimpson | South Carolina Circuit Court | – |
| Curtis Arthur Kin | Superior Court of California, County of Los Angeles | 2013– |
| Michael Kinard | Ark. Ct. App. | 2009–2010 |
| Matthew C. Kincaid | Boone Superior Court | – |
| David Hayes Kincheloe | Customs Ct. | 1931–1948 |
| James W. Kindig | Iowa | 1927–1934 |
| Daniel Johnson Kindred | Texas 454th District Court | – |
| Joshua Michael Kindred | D. Alaska | 2020–2024 |
| Klinette H. Kindred | Bankr. E.D. Virginia | 2017– |
| Leon A. King II | Court of Common Pleas of Philadelphia County | – |
| Alexander Campbell King | Fifth Circuit | 1920–1924 |
| Carolyn Dineen King | Fifth Circuit | 1979– |
| Daniel R King | Lewis County Court | – |
| Donald Bruce King | Cal. Ct. App. | 1976–1996 |
| Donna Gayle King | Texas 26th District Court | – |
| Garr M. King | D. Oregon | 1998–2019 |
| George H. King | C.D. California | 1995–2017 |
| James Lawrence King | S.D. Florida | 1970–2026 |
| James Lawrence King | Superior Court of California, County of Mendocino | 1989–1997 |
| Janet F. King | N.D. Georgia | 1998– |
| Jeffrey King | Cal. Ct. App. | 2003–2016 |
| John Hamilton King | Conn. | 1957–1970 |
| John W. King | N.H. | 1979–1986 |
| Josh King | Cherokee County District Court | – |
| Kathryn H. King | Ariz. | 2021– |
| Kathy J King | New York Supreme Court, 1st Judicial District | – |
| Kay Ann King | Superior Court of Georgia, Rome Judicial Circuit | – |
| Lauren Jennifer King | W.D. Washington | 2021– |
| Leo Landsen King | W.D. Kentucky | 2011– |
| Leslie D. King | Miss. | 2011– |
| Lewis E. King | Superior Court of California, County of Kern | 1981–1992 |
| Lloyd King | Bankr. D. Hawaii | 1975–2016 |
| Mary E. King | Fayette County Court of Common Pleas | – |
| Nicholas King | Ky. | 1995–1996 |
| Norah Mccann King | S.D. Ohio | 1982– |
| Pamela P. King | Superior Court of California, County of San Bernardino | 2012– |
| Richard M. King | Superior Court of California, County of Orange | 2001– |
| Robert Bruce King | Fourth Circuit | 1998– |
| Ronald B. King | Bankr. W.D. Texas | 1988– |
| Ryan J. King | Ripley Circuit Court | – |
| Samuel Pailthorpe King | D. Hawaii | 1972–2010 |
| Timothy King | Muskogee County District Court | – |
| Warren King | D.C. | 1991–1998 |
| Hasa A Kingo | New York City Civil Court, New York County | – |
| Suzanne N. Kingsbury | Superior Court of California, County of El Dorado | 1997–2020 |
| Kay T. Kingsley | Superior Court of California, County of Monterey | 2000–2014 |
| Robert Kingsley | Cal. Ct. App. | 1963–1987 |
| James E. Kinkeade | N.D. Texas | 2002– |
| Joseph Peter Kinneary | S.D. Ohio | 1966–2003 |
| Harry S. Kinnicutt | Superior Court of California, County of Solano | 1995–2018 |
| Wendy A. Kinsella | Bankr. N.D. New York | 2021– |
| Cynthia D. Kinser | Va. | 1997 |
| Grant Kinsey | Texas 440th District Court | – |
| Janet I. Kintner | Superior Court of California, County of San Diego | 1998–2007 |
| John W. kintzinger | Iowa | 1933–1938 |
| Kenton W. Kiracofe | Wells Circuit Court | – |
| Holly M. Kirby | Tenn. Ct. App. | 1995–2014 |
| Jeffrey T. Kirby | Warren County Court of Common Pleas | – |
| Joseph W. Kirby | Warren County Court of Common Pleas | – |
| Michael Kirby | La. Ct. App. | 1999–2000 |
| Todd Kirby | West Virginia Circuit Court | – |
| John D. Kirihara | Superior Court of California, County of Merced | 2001–2010 |
| Walter Kirimitsu | Haw. Ct. App. | 1995–1998 |
| Paul Grattan Kirk Sr. | Mass. | 1960–1970 |
| James D Kirk | W.D. Louisiana | 1998–2015 |
| Kiley Kirk | 6th Chancery Court District | – |
| Michael L. Kirk | Minn. Ct. App. | 2012– |
| Brandi Foster Kirkendall | Johnson Superior Court | – |
| James Kirkham | Kittitas County Superior Court | – |
| Alfred Younges Kirkland Sr. | N.D. Illinois | 1974–2004 |
| James Robert Kirkland | D.D.C. | 1950–1958 |
| Kory Kirkland | Grady County District Court | – |
| Douglas Kirkley | Wagoner County District Court | – |
| K. Michael Kirkman | Superior Court of California, County of San Diego | 1999–2020 |
| Andrew Kirkpatrick | D. New Jersey | 1896–1904 |
| H.L. Kirkpatrick | W. Va. | 2026– |
| K. Nikki Kirkpatrick | Oklahoma County District Court | – |
| Richard C. Kirkpatrick | Superior Court of California, County of San Luis Obispo | 1974–1982 |
| William Huntington Kirkpatrick | E.D. Pennsylvania | 1927–1970 |
| Erin Kirksey | Woodward County District Court | – |
| Carolyn Kirkwood | Superior Court of California, County of Orange | 2002–2010 |
| Thomas Lee Kirsch II | Seventh Circuit | 2020– |
| James S. Kirsch | Ind. Ct. App. | 1994–2007 |
| Robert Andrew Kirsch | D. New Jersey | 2023– |
| Ralph B Kirscher | Bankr. D. Montana | 1999–2017 |
| David J Kirschner | New York Supreme Court, 11th Judicial District | – |
| Philip W Kirschner | Kingston City Court | – |
| Richard H. Kirschner | Superior Court of California, County of Los Angeles | 2001– |
| Howard M. Kirshbaum | Colo. | 1983–1997 |
| Howard M. Kirshbaum | Colo. Ct. App. | 1980–1983 |
| Matthew T. Kirtland | Court of Common Pleas of Venango County | – |
| Evan Patrick Kirvin | Superior Court of California, County of San Diego | 2009– |
| Peter Hunt Kirwan | Superior Court of California, County of Santa Clara | 2006– |
| Timothy J Kirwan | Oswego City Court | – |
| Jackson L. Kiser | W.D. Virginia | 1981–2020 |
| Gregory F Kishel | Bankr. D. Minnesota | 1984–2016 |
| Joanna Kishner | Eighth Judicial District Court | – |
| Brian R. Kisielewski | Court of Common Pleas of Philadelphia County | – |
| Rives Kistler | Or. | 2003– |
| John Joseph Kitchen | D. New Jersey | 1970–1973 |
| W. A. Kitchen | McCracken Circuit Court | – |
| James T. Kitchens Jr. | 16th Circuit Court District | – |
| Travis E. Kitchens Jr. | Texas 258th District Court | – |
| James W. Kitchens | Miss. | 2009 |
| Patti S. Kitching | Cal. Ct. App. | 1990–1993 |
| Marylin S. Kite | Wyo. | 2000 |
| Michael D Kitsis | New York Supreme Court, 2nd Judicial District | – |
| Vijay M Kitson | New York City Housing Court, Queens County | – |
| John W. Kittredge | S.C. | 2008– |
| John W. Kittredge | S.C. Ct. App. | 2003–2008 |
| Stephen Roger Kitts II | Cass Circuit Court | – |
| John C. Klaehn | Ottawa County Municipal Court | – |
| Roger M. Klaphake | Minn. Ct. App. | 1989–2012 |
| Kira Lee Klatchko | Superior Court of California, County of Riverside | 2017– |
| Corinne L. Klatt | Connecticut Superior Court | – |
| William A. Klatt | Ohio Ct. App. | 2002– |
| Daniel J. Klau | Connecticut Superior Court | – |
| R. Gary Klausner | Superior Court of California, County of Los Angeles | 1985–2002 |
| Robert Gary Klausner | C.D. California | 2002– |
| James E. Kleaver | Superior Court of California, County of Siskiyou | 1970–1991 |
| Thomas Shawn Kleeh | N.D. West Virginia | 2018– |
| Robert J. Klees | La. Ct. App. | 1981– |
| Steven Jay Kleifield | Superior Court of California, County of Los Angeles | 2002– |
| Arnold I. Klein | Court of Common Pleas of Allegheny County | – |
| Brett Carroll Klein | Superior Court of California, County of Los Angeles | 2000–2009 |
| Christopher M. Klein | Bankr. E.D. California | 1988– |
| Clifford Loss Klein | Superior Court of California, County of Los Angeles | 2000–2021 |
| Corey E Klein | Long Beach City Court | – |
| David Klein | Texas 148th District Court | – |
| Herbert M. Klein | Fla. Dist. Ct. App. | 1979–1988 |
| Joan Dempsey Klein | Cal. Ct. App. | 1975–2014 |
| Karen K Klein | D. North Dakota | 1985–2015 |
| Larry Klein | Fla. Dist. Ct. App. | 1993–2009 |
| Richard B. Klein | Pa. Super. Ct. | 2001–2009 |
| Robert Gordon Klein | Haw. Ct. App. | 1984–1992 |
| Ross M. Klein | Superior Court of California, County of Los Angeles | 2005–2018 |
| Sandra R. Klein | Bankr. C.D. California | 2011– |
| Stephanie H. Klein | Court of Common Pleas of Delaware County | – |
| James P. Kleinberg | Superior Court of California, County of Santa Clara | 2002–2014 |
| Andrew Jay Kleinfeld | Ninth Circuit | 1991–2025 |
| Philip M. Kleinfield | N.Y. App. Div. | 1955–1970 |
| Thomas C. Kleinschmidt | Ariz. Ct. App. | 1982–2000 |
| Wendy J. N. Klicko | Sauk County Circuit Court | – |
| James R. Klindt | M.D. Florida | 2007– |
| John Anthony Kline | Cal. Ct. App. | 1982–2021 |
| Roger L. Kline | Ohio Ct. App. | 1995 |
| Christina R. Klineman | Marion Superior Court | – |
| Ray Klingbiel | Ill. | 1953–1969 |
| J Philip Klingeberger | Bankr. N.D. Indiana | 2003–2017 |
| Mark W. Klingensmith | Fla. Dist. Ct. App. | 2013– |
| Nona Louise Klippen | Superior Court of California, County of Santa Clara | 2015– |
| Frank Le Blond Kloeb | N.D. Ohio | 1937–1976 |
| Barry B. Klopfer | Superior Court of California, County of Ventura | 1998–2007 |
| Roger Klopp | Columbia County Circuit Court | – |
| Joanne F. Kloppenburg | Wis. Ct. App. | 2012– |
| Thomas E. Kluczynski | Ill. | 1966–1980 |
| Amanda M. Knapp | N.D. Ohio | 2021– |
| Dennis Raymond Knapp | S.D. West Virginia | 1970–1998 |
| Martin Augustine Knapp | Fourth Circuit | 1916–1923 |
| Percy Whitman Knapp | S.D. New York | 1972–2004 |
| Loyal Edwin Knappen | Sixth Circuit | 1910–1930 |
| Francis Knauss | Colo. | 1951–1961 |
| Richard W. Knecht | Court of Common Pleas of Columbia & Montour Counties | – |
| Robert P. Kneeland | Superior Court of California, County of Orange | 1957–1980 |
| James R. Knepp II | N.D. Ohio | 2010– |
| James Ray Knepp II | N.D. Ohio | 2020– |
| Linda Knepp | Lucas County Court of Common Pleas | – |
| Patricia L. Knepp | Warren Municipal Court | – |
| John Fitzgerald Kness | N.D. Illinois | 2020– |
| Lawrence J Knickerbocker | Cortland City Court | – |
| Grace G. Knie | South Carolina Circuit Court | – |
| Scott Knierim | Hendricks Superior Court | – |
| Benjamin K. Knight | Cal. Ct. App. | 1924–1946 |
| Clarence B. Knight | Superior Court of California, County of San Mateo | 1982–1997 |
| John Knight | W.D. New York | 1932–1955 |
| Lynn Knight | Circuit Court for Queen Anne's County | – |
| Michael E. Knight | Superior Court of California, County of Los Angeles | 2000–2006 |
| R. Leslie Knight | Carroll, Grant & Owen Circuit Court | – |
| Shannon Knight | Superior Court of California, County of Los Angeles | 2015– |
| Tara Knight | Connecticut Superior Court | – |
| Thomas Edmund Knight | Ala. | 1931–1943 |
| Thomas J. Knight | Ky. | 1947–1951 |
| Kimberly Anne Knill | Superior Court of California, County of Orange | 2018– |
| Mary Jane Knisely | Thirteenth Judicial District Court | – |
| Michael Anthony Knish | Superior Court of California, County of San Bernardino | 2012– |
| Gary F Knobel | New York Supreme Court, 10th Judicial District | – |
| Winfred George Knoch | Seventh Circuit | 1958–1983 |
| Jeanette Theriot Knoll | La. | 1997– |
| Jeannette Knoll | La. Ct. App. | 1982– |
| William Lee Knous | D. Colorado | 1950–1959 |
| William Lee Knous | Colo. | 1937–1947 |
| Daniel E. Knowles III | E.D. Louisiana | 2003–2019 |
| Brett M Knowles | Cohoes City Court | – |
| E Clifton Knowles | M.D. Tennessee | 2000–2016 |
| Hiram Knowles | D. Montana | 1890–1904 |
| John Power Knowles | D. Rhode Island | 1870–1881 |
| Ann Knox-Bauer | Taylor County Circuit Court | – |
| John Clark Knox | S.D. New York | 1918–1966 |
| Kimberly A. Knox | Connecticut Superior Court | – |
| Robert Alan Knox | Superior Court of California, County of Orange | 2013– |
| William W. Knox | W.D. Pennsylvania | 1970–1981 |
| Francis X. Knuck | Fla. Dist. Ct. App. | 1965–1968 |
| David S. Knudson | Kan. Ct. App. | 1995–2003 |
| E. T. Knudson | Idaho | 1959–1965 |
| Harvey B. Knudson | N.D. | 1965–1975 |
| Jay Knudson | Northeast Central Judicial District Court | – |
| Larry S. Knupp | Superior Court of California, County of Los Angeles | 2000–2006 |
| Amy J Knussman | Saratoga County Family Court | – |
| Oscar R. Knutson | Minn. | 1948–1973 |
| Nancy Quinn Koba | New York Supreme Court, 9th Judicial District | – |
| Melissa C. Kobasher | Lorain County Court of Common Pleas | – |
| Bert Kobayashi | Haw. | 1969–1979 |
| Charles C. Kobayashi | Superior Court of California, County of Sacramento | 1991–2006 |
| Leslie Emi Kobayashi | D. Hawaii | 2010– |
| Jonathan Allen Kobes | Eighth Circuit | 2018– |
| Julia Eleanor Kobick | D. Massachusetts | 2023– |
| William C. Koch Jr. | Tenn. | 2007–2014 |
| Crystal Brucker Kocher | Pulaski Superior Court | – |
| Charles Petros Kocoras | N.D. Illinois | 1980– |
| Julie H. Kocurek | Texas 390th District Court | – |
| Montgomery Oliver Koelsch | Ninth Circuit | 1959–1992 |
| John George Koeltl | S.D. New York | 1994– |
| Nancy M Koenig | N.D. Texas | 1998–2016 |
| Stephen J. Koester | Madison Circuit Court | – |
| Joseph S. Koford | Cal. Ct. App. | 1927–1930 |
| Gerald Kogan | Fla. | 1987–1998 |
| Lucy Haeran Koh | Ninth Circuit | 2021– |
| Paul Kohler | D. Utah | 2019– |
| Terri L. Kohlrieser | Allen County Court of Common Pleas | – |
| Todd E. Kohlrieser | Allen County Court of Common Pleas | – |
| Christian Cecil Kohlsaat | Seventh Circuit | 1905–1918 |
| John B. Kohn | Ala. | 1968–1968 |
| Wendy L. Kohn | Superior Court of California, County of Los Angeles | 2003–2014 |
| Victoria S. Kolakowski | Superior Court of California, County of Alameda | 2011– |
| Joshua P. Kolar | N.D. Indiana | 2019– |
| Joshua Paul Kolar | Seventh Circuit | 2024– |
| Dennis Kolenda | Mich. Ct. App. | 1989–2008 |
| Colleen Kollar-Kotelly | D.D.C. | 1997– |
| Colleen Kollar-Kotelly | D.C. | 1984–1997 |
| Marjorie Koller | Superior Court of California, County of Sacramento | 2009–2018 |
| Mark J. Kolmacic | Campbell Municipal Court | – |
| Richard G., Sr. Kolostian | Superior Court of California, County of Los Angeles | 1980–2006 |
| Thomas D. Kolpacoff | Superior Court of California, County of Alpine | 2011–2018 |
| James G. Kolts | Superior Court of California, County of Los Angeles | 1969–1989 |
| John W. Kolwe | Bankr. W.D. Louisiana | 2015– |
| Jack Komar | Superior Court of California, County of Santa Clara | 1985–2009 |
| Eric Ross Komitee | E.D. New York | 2019– |
| Paul J Komives | E.D. Michigan | 1971–2015 |
| Aphrodite K. Konduros | S.C. Ct. App. | 2008– |
| John K. Konenkamp | S.D. | 1994 |
| Thomas Kongsgaard | Superior Court of California, County of Napa | 1959–1985 |
| K Max Koonce II | Ark. Ct. App. | 2000–2001 |
| Lawrence L. Koontz | Va. | 1995–2011 |
| Sybil Hart Kooper | N.Y. App. Div. | 1985–1991 |
| Charles J. Koosed | Superior Court of California, County of Riverside | 2007– |
| Michael P. Kopech | Texas 276th District Court | – |
| Richard George Kopf | D. Nebraska | 1992–2025 |
| Nancy J. Koppe | D. Nevada | 2013– |
| Sabrina Korbel | Court of Common Pleas of Allegheny County | – |
| Harold E. Koreman | N.Y. App. Div. | 1975–1977 |
| Edward Robert Korman | E.D. New York | 1985– |
| Milton D. Korman | D.C. | 1967–1976 |
| Renée Fenton Korn | Superior Court of California, County of Los Angeles | 2009– |
| Jules G. Körner | Tax Ct. | 1981–1997 |
| Charles B. Kornmann | D. South Dakota | 1995– |
| Louis H Kornreich | Bankr. D. Maine | 2001–2015 |
| Kevin M. Korsmo | Wash. Ct. App. | 2008– |
| Alan M. Koschik | Bankr. N.D. Ohio | 2014– |
| Arthur A. Koscinski | E.D. Michigan | 1945–1957 |
| Roger T. Kosel | Superior Court of California, County of Siskiyou | 1998–2008 |
| Biju J Koshy | New York City Criminal Court, Richmond County | – |
| Bernard A. Kosicki | Conn. App. Ct. | 1963–1968 |
| Edwin Michael Kosik | M.D. Pennsylvania | 1986–2019 |
| Douglas H. Kossler | Alaska Ct. App. | 2013– |
| Robert Kostelka | La. Ct. App. | 1998–2003 |
| Frank Dobie Kosub | Texas 89th District Court | – |
| Lynn R Kotler | New York Supreme Court, 1st Judicial District | – |
| Maryann D'Addezio Kotler | Superior Court of California, County of San Diego | 2016– |
| Rebecca Love Kourlis | Colo. | 1995–2006 |
| Michael J. Koury Jr. | Court of Common Pleas of Northampton County | – |
| Elizabeth A. Kovachevich | Fla. Dist. Ct. App. | 1973–1982 |
| Elizabeth Anne Kovachevich | M.D. Florida | 1982– |
| Louis S. Kovacs | Oregon Municipal Court | – |
| Rachel Peter Kovner | E.D. New York | 2019– |
| Sarah T. Kovoor | Trumbull County Court of Common Pleas | – |
| Ronald E. Kowalski II | Connecticut Superior Court | – |
| Adela Kowalski-Garza | Texas 484th District Court | – |
| Alex Kozinski | Ninth Circuit | 1985–2017 |
| Mark D. Kozisek | Brown County District Court | – |
| Charles William Kraft Jr. | E.D. Pennsylvania | 1956–2002 |
| Amber A. Kraft | Court of Common Pleas of York County | – |
| Christine P Krahulik | Orange County Family Court | – |
| Jon D. Krahulik | Ind. | 1990–1993 |
| John Joseph Kralik | Superior Court of California, County of Los Angeles | 2009– |
| Nadia Krall | Eighth Judicial District Court | – |
| Shirley Wohl Kram | S.D. New York | 1983–2009 |
| Kenneth B Kramer | Veterans Claims | 1989–2004 |
| Kurt Kramer | Superior Court of New Jersey, Camden Vicinage | – |
| Mary Beth Kramer | Superior Court of New Jersey, Cumberland/Gloucester/Salem Vicinage | – |
| Mary M. Kramer | Circuit Court for Howard County | – |
| Noel A. Kramer | D.C. | 2005–2011 |
| Elisabeth B. Krant | Superior Court of California, County of Tulare | 1998–2013 |
| David M. Krashna | Superior Court of California, County of Alameda | 2001–2015 |
| Robert J. Krask | E.D. Virginia | 2015– |
| David Krathen | Fla. Dist. Ct. App. | 2003–2006 |
| Jillian N. Kratochvil | Vanderburgh Superior Court | – |
| Sabrina B Kraus | New York Supreme Court, 1st Judicial District | – |
| Amy Ronayne Krause | Mich. Ct. App. | 2010– |
| Andrew E. Krause | S.D. New York | 2020– |
| Cheryl Ann Krause | Third Circuit | 2014– |
| Peter Andrew Krause | Cal. Ct. App. | 2018– |
| Rachel R. Krause | Superior Court of Georgia, Atlanta Judicial Circuit | – |
| Peter B. Krauser | Md. App. Ct. | 2000– |
| Gabriel M. Krausman | N.Y. App. Div. | 1993–2007 |
| Margaret J Kravchuk | D. Maine | 2000–2014 |
| Phyllis A. Kravitch | Eleventh Circuit | 1981–2017 |
| Mark R. Kravitz | D. Connecticut | 2003–2012 |
| Mary E. Kreber Varipapa | Superior Court of California, County of Orange | 2015– |
| Ronald P. Kreber | Superior Court of California, County of Orange | 1998–2014 |
| Gary G. Kreep | Superior Court of California, County of San Diego | 2013–2019 |
| Charles A. Kreger | Tex. App. | 2005–2022 |
| Matthew P. Kreitzer | Stark County Family Court | – |
| Arnold Krekel | W.D. Missouri | 1865–1888 |
| Daniel J. Kremer | Cal. Ct. App. | 1983–2003 |
| Edward Michael Krenek | Texas 400th District Court | – |
| Isaac Benjamin Krentzman Jr. | M.D. Florida | 1967–1998 |
| Alvin I. Krenzler | N.D. Ohio | 1981–1992 |
| Robert J. Kressel | Bankr. D. Minnesota | 1996– |
| Rhonda Bender Kreuziger | Superior Court of Georgia, Griffin Judicial Circuit | – |
| R. Scott Krichbaum | Mahoning County Court of Common Pleas | – |
| Robert Krieg | Gibson Superior Court | – |
| Jerold A. Krieger | Superior Court of California, County of Los Angeles | 1989–2002 |
| Marcia S. Krieger | D. Colorado | 2002– |
| Timothy A. Krieger | Court of Common Pleas of Westmoreland County | – |
| Sandy R. Kriegler | Cal. Ct. App. | 1989–2018 |
| Viktoria Kristiansson | Court of Common Pleas of Philadelphia County | – |
| Marlene A. Kristovich | Superior Court of California, County of Los Angeles | 1995–2011 |
| Kira S. Krivosh | Cuyahoga County Court of Common Pleas | – |
| Norman Krivosha | Neb. | 1978–1987 |
| Randall C Krog | Klickitat County Superior Court | – |
| Randall C Krog | Skamania County Superior Court | – |
| Kathleen Kroll | Fla. Dist. Ct. App. | 1995–1998 |
| Angela R. Krom | Court of Common Pleas of Franklin & Fulton Counties | – |
| Scott M Krompinger | New York City Civil Court, Bronx County | – |
| William H. Kronberger | Superior Court of California, County of San Diego | 1998–2012 |
| Robert H. Kroninger | Superior Court of California, County of Alameda | 1963–1984 |
| Barbara Aysha Kronlund | Superior Court of California, County of San Joaquin | 2005– |
| John Arnold Kronstadt | C.D. California | 2011– |
| John Arnold Kronstadt | Superior Court of California, County of Los Angeles | 2002–2011 |
| Kara E. Krothe | Monroe Circuit Court | – |
| Diane Kroupa | Tax Ct. | 2003–2014 |
| Stephen Thomas Kroyer | Superior Court of California, County of Napa | 1998–2011 |
| Herbert F. Krucker | Ariz. Ct. App. | 1965–1976 |
| Christopher Edward Krueger | Superior Court of California, County of Sacramento | 2011– |
| Bob N. Krug | Superior Court of California, County of San Bernardino | 1979–1998 |
| Leondra Reid Kruger | Cal. | 2015– |
| Andrea R Krugman | New York City Civil Court, New York County | – |
| Deborah A. Krull | Court of Common Pleas of Delaware County | – |
| Eugene W. Krum | Superior Court of California, County of Fresno | 1981–1991 |
| Randolph Kruman | Cortland County Court | – |
| Ross W Krumm | Bankr. W.D. Virginia | 1986–2012 |
| Blanche Ethel Krupansky | Ohio | 1981–1983 |
| Robert B. Krupansky | Sixth Circuit | 1982–2004 |
| Brian S. Kruse | Bankr. D. Nebraska | 2020– |
| Joseph E. Kubit | Court of Common Pleas of Butler County | – |
| Andrew D. Kubovcik | Chesapeake Circuit Court | – |
| Larry A Kudrle | N.D. New York | 2002–2014 |
| Dana Kuehn | Okla. | 2021– |
| Kathryn Kuehn | Hendricks Superior Court | – |
| Kevin P Kuehner | New York Supreme Court, 5th Judicial District | – |
| Robert B. Kugler | D. New Jersey | 2002–2024 |
| Jeffrey S. Kuglitsch | Rock County Circuit Court | – |
| Carolyn B. Kuhl | Superior Court of California, County of Los Angeles | 2015–2016 |
| Jeffrey Marion Kuhlman | D. Kansas | 2026– |
| Joel Kuhlman | Wood County Court of Common Pleas | – |
| Timothy C. Kuhlman | Toledo Municipal Court | – |
| James Edward Kuhn | La. Ct. App. | 1995– |
| Jimmy Kuhn | La. Ct. App. | 1994–2014 |
| Mark E. Kuhn | Scioto County Court of Common Pleas | – |
| Thomas Eilif Kuhnle | Superior Court of California, County of Santa Clara | 2011– |
| Chad E. Kukelhan | Adams Circuit Court | – |
| Joanne K. Kulawiz | Conn. App. Ct. | 1998–1999 |
| Teresa C. Kulik | Wash. Ct. App. | 2006–2014 |
| Sunil Ravindra Kulkarni | Superior Court of California, County of Santa Clara | 2013– |
| Michael Kulling | Payne County District Court | – |
| Ted Kulongoski | Or. | 1997–2001 |
| Jessica A Kulpit | Erie County Court | – |
| Sanjay Trikha Kumar | Superior Court of California, County of Los Angeles | 2005– |
| Shalina Deborah Kumar | E.D. Michigan | 2021– |
| Kurt E. Kumli | Superior Court of California, County of Santa Clara | 2006–2014 |
| Kay Susanne Kuns | Superior Court of California, County of Santa Barbara | 2008– |
| William Francis Kuntz II | E.D. New York | 2011– |
| Jeffrey Thomas Kuntz | S.D. Florida | 2026– |
| Fred Kunzel | S.D. California | 1959–1969 |
| Joseph J. Kunzeman | N.Y. App. Div. | 1985–1992 |
| Robert Lowe Kunzig | Ct. of Claims | 1972–1982 |
| Peggy Kuo | E.D. New York | 2015– |
| Richard A Kupferman | New York Supreme Court, 4th Judicial District | – |
| Theodore R. Kupferman | N.Y. App. Div. | 1971–1996 |
| Robin Kurmin-English | Superior Court of New Jersey, Monmouth Vicinage | – |
| Barry Kurren | D. Hawaii | 1992– |
| Donald Scott Kurtz | Superior Court of California, County of Kings | 2020–2033 |
| Frank L. Kurtz | Bankr. E.D. Washington | 2005– |
| Dean T Kusakabe | Queens County Family Court | – |
| William F. Kussel Jr. | Menominee/Shawano County Circuit Court | – |
| William F. Kussel Jr. | Shawano/Menominee County Circuit Court | – |
| Russell S. Kussman | Superior Court of California, County of Los Angeles | 2010–2016 |
| John Kutzman | Eighth Judicial District Court | – |
| Elizabeth N. Kutzner | Superior Court of California, County of San Diego | 1979–1999 |
| John M Kuzdale | Dunkirk City Court | – |
| Hunchu Kwak | Connecticut Superior Court | – |
| Robert N. Kwan | Bankr. C.D. California | 2007– |
| John W. Kyle | Miss. | 1950–1965 |
| Richard House Kyle | D. Minnesota | 1992–2021 |
| Anthony G. Kyriakakis | Court of Common Pleas of Philadelphia County | – |
| Efstathia G Kyriakopoulos | St. Lawrence County Family Court | – |