John William Ditter Jr. (October 19, 1921 – April 7, 2019) was a United States district judge of the United States District Court for the Eastern District of Pennsylvania.

John William Ditter Jr.
Pennsylvania Eastern District Court
Born 1921 in Philadelphia, PA
Died 2019 in Perkiomenville, PA
FJC ID: 624
- Gender
- Male
- Race
- White
Prior employment
- Court of Common Pleas of Montgomery County [Pennsylvania]Judge · 1964–1970
- Private practice, Ambler, Pennsylvania1953–1963
- Montgomery County, PennsylvaniaAssistant district attorney · 1951, 1953–1955, 1956–1960
- ↳first assistant district attorney · 1956–1960
- U.S. Naval Reserve captain1943–1946, 1951–1953
- Court of Common Pleas of Montgomery County [Pennsylvania]Law clerk · 1948–1950
Appointments
1970–2019 · Appointed by Richard M. Nixon (Republican)Term ended: Death
Education

- Ursinus CollegeB.A. · 1943