Diarmuid Duggan (born 1980) is an Irish former Gaelic football player and manager who played for club side Ilen Rovers, at the divisional level with Carbery and inter-county level with the Cork senior football team.
Duggan first came to Gaelic football prominence with the Ilen Rovers club in West Cork, with whom he won an All-Ireland Club Championship medal in the intermediate grade in 2004.
Duggan first played for Cork at minor and under-21 levels, while he won an All-Ireland Junior Championship title in 2001.
As a player with Munster, Duggan won a Railway Cup medal in 2008.
A series of injuries brought an end to his playing career, and he turned to coaching and team management with his home club.