Ninth Circuit / Appointed 1986 / Senior status

Diarmuid Fionntain O'Scannlain

Judge, U.S. Court of Appeals for the Ninth Circuit

Appointed by President Ronald Reagan in 1986 and confirmed by voice vote, Diarmuid Fionntain O'Scannlain is a Judge on the U.S. Court of Appeals for the Ninth Circuit. He earned a law degree from Harvard Law School in 1963. Sources: FJC Biographical Directory · Senate confirmation, September 25, 1986

Appointed by
Ronald Reagan, 1986
Confirmed
by voice vote
Education
St. John's 1957 · Harvard Law School 1963
Federal judicial service
YearCourtAppointed byVote
1986Ninth Circuit · succeeded Robert BoocheverReagan (R)voice

A per-senator roll-call isn’t shown for this confirmation. The Senate’s recorded roll-call votes begin in 1989; many confirmations (especially before then, and most to the lower courts) were by voice vote or unanimous consent.

Education
Sources

39 years on the Ninth Circuit. Data last verified 2026-06-28. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).