John Cashman
John Cashman may refer to:
- John Cashman (basketball), American basketball coach active in 1920s
- John Cashman (1890s hurler), Irish hurler for Blackrock and Cork
- John Cashman (hurler, born 1997), Irish hurler for Blackrock and Cork
- John Cashman (journalist), war correspondent killed in 1945 plane crash
- John Cashman (rower) (born 1972), American rower
- John E. Cashman, Boeing 777 chief test pilot
- John E. Cashman (1865–1946), Wisconsin politician
See also
- Jack Cashman (born 1906), Australian rules footballer