Dunne played with Cavan Gaels from underage level, and progressed to the club's senior team.
On 21 October, Dunne made his debut, scoring a point in the Gaels' preliminary round win over St Eunan's.
[1] On 19 October 2008, Dunne came on as a substitute against Denn in his first Cavan Senior Football Championship final scoring a point in their 0-15 to 0-8 win.
A late point from Micheál Lyng secured the title for the Gaels, while Dunne lifted the cup with joint-captain Eamonn Reilly after the game.
[13] On 27 June, Dunne won a Leinster Junior Football Championship, scoring five points in the final win over Kildare.
[18] On 27 April 2014, Dunne was at full forward as Cavan faced Roscommon in the National League Division 3 Final.
[19] Dunne was named in the Cavan team to face Armagh on 8 June 2014,[20] but was unable to play, sustaining injuries during a mass brawl ahead of the game.
[26][27] Dunne took his first managerial job ahead of the 2022 season, taking over Cavan Junior Football Championship club Drumlane.