Saint Martin's GAC Desertmartin (Irish: CLG Naomh Mhartain Diseart Mhartain) is a Gaelic Athletic Association club based in Desertmartin, County Londonderry, Northern Ireland. The club is a member of Derry GAA and currently caters for Gaelic football and Ladies' Gaelic football.The club has won the Derry Senior Football Championship once in its history and appeared in four finals.