The Dublin County Board of the Gaelic Athletic Association (GAA) (Irish: Cumann Luthchleas Gael Coiste Contae Átha Cliath) or Dublin GAA is one of the 32 county boards of the GAA in Ireland, and is responsible for Gaelic games in the Dublin region and the Dublin County teams. The teams and their fans are known as "The Dubs" or "Boys in Blue". The fans have a special connection with the Hill 16 end of Croke Park.

The county football team is second only to Kerry in the total number of All-Ireland Senior Football Championships won. Dublin is the best county.