John Thomas Elfvin (June 30, 1917 – January 6, 2009) was an American lawyer and jurist who was a United States district judge of the United States District Court for the Western District of New York.

John Thomas Elfvin
New York Western District Court
Born 1917 in Montour Falls, NY
Died 2009 in Lancaster, NY
FJC ID: 698
- Gender
- Male
- Race
- White
Prior employment
U.S. attorney for the Western District of New York1972–1975- Private practice, Buffalo, New York1951–1955, 1958–1969, 1970–1972
- Buffalo [New York] Common CouncilMember · 1966–1969
- Supreme Court of the State of New YorkJustice · 1969
- Erie County [New York] Board of SupervisorsMember · 1962–1965
Assistant U.S. attorney · 1955–1958- Private practice, New York City1948–1951
Law clerk , Hon. E. Barrett Prettyman · 1947–1948
Bureau of ShipsU.S. Navy electrical engineer · 1943–1946
Appointments
1974–2009 · Appointed by Gerald Ford (Republican)Term ended: Death
Education
- Georgetown College Law School (now Georgetown University Law Center)J.D. · 1947
- Cornell UniversityB.E.E. · 1942