Marty Duffy

Martin Duffy is a Gaelic football referee from County Sligo. He is from Enniscrone.

He is a member of the Kilgass GAA club and has served as its chairperson. He is the brother of Michael Duffy, also a referee.

Career
Duffy refereed the 2009 All-Ireland Senior Football Championship Final between Cork and Kerry at Croke Park. The decision to appoint Duffy surprised Mick O'Dwyer and Billy Morgan, who thought it would have gone to Pat McEnaney, comments which disappointed former referee Weeshie Fogarty.

Duffy had done some Sligo and Connacht finals and refereed both the 2009 National Football League opener between Dublin and Tyrone and the 2009 National Football League final between Derry and Kerry. He did provincial finals in Leinster and Munster too. He also refereed the 2013 National Football League final between Dublin and Tyrone.

He retired from inter-county refereeing at the end of 2017. He also retired from refereeing, with his last game being the 2017 Connacht Senior Club Football Championship final.

He was appointed chair of the Central Referees' Appointments Committee (CRAC) in 2021.