Founded in 1900 in the town of Mountmellick in County Laois. Club colours are blue and white and home games are played at Pairc Acragar.
In 2006, Mountmellick bridged a 38-year gap to win the Laois Intermediate Football Championship for just the second time ever, beating Annanough in the final.
Mountmellick has also won the Laois Junior Football Championship four times (1929, 1941, 1966 and 1972) and the Laois Minor Football Championship twice, in 1975 and 1977.
Mountmellick has also won the Laois Intermediate Hurling Championship on one occasion in 1967 with five wins in the Laois Junior Hurling Championship also to their credit.