John Cohen may refer to:
Politicians John S. Cohen (1870–1935), U.S. Senator from Georgia John Cohen (Australian politician) (1859–1939), Australian politician and judge
Others John Cohen (baseball) (born 1966), American baseball coach John Cohen (musician) (1932–2019), American folk musician and photographer/filmmaker John Cohen (psychologist) (born 1911), British psychologist, see Thinker's Library J. M. Cohen (John Michael Cohen, 1903–1989), British writer and translator
See also Jack Cohen (disambiguation) Jonathan Cohen (disambiguation)