William John Castagna (June 25, 1924 – December 18, 2020) was a United States district judge of the United States District Court for the Middle District of Florida.

William John Castagna
Born 1924 in Philadelphia, PA
Died 2020
FJC ID: 397
- Gender
- Male
- Race
- White
Prior employment
- Private practice, Clearwater, Florida1950–1979
- Private practice, Miami, Florida1949–1950
Air CorpsU.S. Army · 1943–1945
Appointments
1979–2020 · Appointed by Jimmy Carter (Democratic)Term ended: Death
Education
- University of Florida College of Law (now Fredric G. Levin College of Law)J.D. · 1967
- University of Florida College of Law (now Fredric G. Levin College of Law)LL.B. · 1949