Allegheny County John Doe may refer to:
Pennsylvania[]
- Allegheny County John Does (1940)
- Allegheny County John Doe (1992)
- Allegheny County John Doe (1993)
- Allegheny County John Doe (1998)
- Allegheny County John Doe (2003)
- Allegheny County John Doe (2013)
- Allegheny County John Doe (2018)
- Allegheny County John Doe (2021)
- Allegheny County John Doe (2022)
Virginia[]
- "Matthew Howard" (2020)