John Cotter may refer to:
Mick Cotter, John Francis "Mick" Cotter, (born 1935), Australian politician John L. Cotter (1911–1999), American archaeologist John P. Cotter (1911–1993), Justice of the Connecticut Supreme Court John Cotter of Coppingerstown (fl. 1585), member of Irish Cotter family John Cotter, fictional character in TV series Fashion House John Cotter, Australian racing driver and co-owner of M3 Motorsport
See also Jack Cotter John T Cotter John Cother (by 1490–1532 or later), English politician Cotter (surname)