| Lawrence W. I'Anson | Va. | 1958–1981 |
| Angela G Iannacci | New York Supreme Court, 10th Judicial District | – |
| Jerry M Iannece | New York City Criminal Court, Queens County | – |
| Salvatore R. Iaquinto | Virginia Beach Circuit Court | – |
| Nicholas A. Iarocci | Conneaut Municipal Court | – |
| Richard A. Ibanez | Superior Court of California, County of Los Angeles | 1975–1994 |
| Audra Ibarra | Superior Court of California, County of Santa Clara | 2019– |
| Shorab Ibrahim | New York City Housing Court, Queens County | – |
| Garry T. Ichikawa | Superior Court of California, County of Solano | 2000–2018 |
| Jon M. Ickes | Sandusky County Court of Common Pleas | – |
| Nathan Daniel Ide | Superior Court of California, County of Tulare | 2014– |
| James M. Ideman | C.D. California | 1984–1998 |
| James M. Ideman | Superior Court of California, County of Los Angeles | 1979–1984 |
| Alexander R. Iden | Frederick Circuit Court | – |
| Darla S. Ideus | Lancaster County District Court | – |
| Michael G. Idiart | Superior Court of California, County of Fresno | 2016– |
| Richard B. Iglehart | Superior Court of California, County of Alameda | 2000–2003 |
| Efren N. Iglesia | Superior Court of California, County of Monterey | 2007–2020 |
| Philip A. Ignelzi | Court of Common Pleas of Allegheny County | – |
| Michael Lambert Igoe | N.D. Illinois | 1939–1967 |
| Dale Ikeda | Superior Court of California, County of Fresno | 2001–2017 |
| Raymond John Ikola | Cal. Ct. App. | 2003–2021 |
| Sandra Segal Ikuta | Ninth Circuit | 2006–2025 |
| Pamela Lee Iles | Superior Court of California, County of Orange | 1998–2008 |
| John Iliou | Suffolk County Court | – |
| Robert M. Illman | N.D. California | 2017– |
| Susan Yvonne Illston | N.D. California | 1995– |
| Harry P. Ilsley | Wyo. | 1952–1953 |
| Annabelle Clinton Imber | Ark. | 1997–2009 |
| Cynthia Imbrogno | E.D. Washington | 1991–2013 |
| Karin Johanna Immergut | D. Oregon | 2019– |
| Daniel F. Imrie | N.Y. App. Div. | 1953–1955 |
| Everett Inbody | Neb. Ct. App. | 1995– |
| Dorothy Incarvito-Garrabrant | Superior Court of New Jersey, Atlantic/Cape May Vicinage | – |
| Robert Alexander Inch | E.D. New York | 1924–1961 |
| Gilbert V. Indeglia | R.I. | 2010 |
| Jerald A. Infantino | Superior Court of California, County of Santa Clara | 1998–2004 |
| John H. Ing | Superior Court of California, County of Los Angeles | 2007– |
| Charles Anthony Ingersoll | D. Connecticut | 1853–1860 |
| Gary A. Ingle | Superior Court of California, County of Kern | 2000–2010 |
| Ernest Alexander Inglis | Conn. | 1950–1957 |
| Joseph N. Ingolia | Tax Ct. | 1970–1977 |
| George L. Ingraham | N.Y. | 1896–1915 |
| Joe McDonald Ingraham | Fifth Circuit | 1969–1990 |
| G Conley Ingram | Ga. | 1973–1977 |
| Hanly A. Ingram | E.D. Kentucky | 2010– |
| Kenneth F. Ingram | Ala. | 1991–1997 |
| Shukura L. Ingram | Superior Court of Georgia, Atlanta Judicial Circuit | – |
| William Austin Ingram | N.D. California | 1976–2002 |
| John F. Ingro | Superior Court of California, County of San Bernardino | 1976–1996 |
| Maral Injejikian | Superior Court of California, County of Los Angeles | 2000–2011 |
| Evan Inlaw | Yonkers City Court | – |
| Dennis H. Inman | E.D. Tennessee | 1995– |
| Harry Innes | D. Kentucky | 1789–1816 |
| Robert Kth Inselmann Jr. | Texas 217th District Court | – |
| Cheryl Insinga | New York Supreme Court, 6th Judicial District | – |
| Ferdinand Paulino Inumerable | Superior Court of California, County of Ventura | 2014– |
| William H. Inzer | Miss. | 1965–1978 |
| Angeline N. Ioannou | Connecticut Superior Court | – |
| Tamila Ebrahimi Ipema | Superior Court of California, County of San Diego | 2009– |
| Nahal Iravani-Sani | Superior Court of California, County of Santa Clara | 2017– |
| Todd Darrow Irby | Superior Court of California, County of Placer | 2018– |
| James Iredell | Supreme Court | 1790–1799 |
| Faith Ireland | Wash. | 1998–2005 |
| Roderick L. Ireland | Mass. | 1997– |
| Joseph Eron Irenas | D. New Jersey | 1992–2015 |
| Daniel C. Irick | M.D. Florida | 2016– |
| Joan Kathleen Irion | Cal. Ct. App. | 2003– |
| Dora L. Irizarry | E.D. New York | 2004– |
| Jonathan Q. Irvine | Court of Common Pleas of Philadelphia County | – |
| Patrick Irvine | Ariz. Ct. App. | 2002–2011 |
| J. Lawrence Irving | S.D. California | 1982–1990 |
| Kimberly A. Irving | Prince William Circuit Court | – |
| Leo H. Irwin | Tax Ct. | 1968–1983 |
| Pat Irwin | Okla. | 1956–1983 |
| Thomas Irwin | W.D. Pennsylvania | 1832–1859 |
| Veronica R Irwin | Nassau County District Court | – |
| James M. Isaacson | Chippewa County Circuit Court | – |
| Joseph Isabella | Superior Court of New Jersey, Hudson Vicinage | – |
| Carol Isackson | Superior Court of California, County of San Diego | 2001–2015 |
| Susan Elizabeth Isacoff | Superior Court of California, County of Los Angeles | 2000–2004 |
| Cynthia Isales | New York City Civil Court, Bronx County | – |
| Nicole L. Isger | Superior Court of California, County of Santa Clara | 2019– |
| Marvin P. Isgur | Bankr. S.D. Texas | 2004– |
| Paul W. Ishak | Circuit Court for Harford County | – |
| Monica M. Isham | Sawyer County Circuit Court | – |
| David Ishee | Miss. | 2017– |
| Anthony W. Ishii | E.D. California | 1997– |
| Laurel M. Isicoff | Bankr. S.D. Florida | 2006– |
| Ron Israel | Eighth Judicial District Court | – |
| Ted Israel | Idaho District Court | – |
| Valli Katrina Israels | Superior Court of California, County of Stanislaus | 2010– |
| Lance A. Ito | Superior Court of California, County of Los Angeles | 1989–2015 |
| Roger Tetsuo Ito | Superior Court of California, County of Los Angeles | 2005– |
| Heather Iverson | Kenosha County Circuit Court | – |
| Ben Lee Ivey III | Texas 120th District Court | – |
| William T. Ivey | Superior Court of California, County of Merced | 1990–1997 |
| Curtis Ivy Jr. | E.D. Michigan | 2020– |
| Bruce Gen Iwasaki | Superior Court of California, County of Los Angeles | 2012– |
| James F. Iwasko | Superior Court of California, County of Santa Barbara | 2002–2014 |