The Sligo County Board of the Gaelic Athletic Association (GAA) () or Sligo GAA is one of the 32 county boards of the GAA in Ireland, and is responsible for Gaelic games in County Sligo. The county board is also responsible for the Sligo county teams.
The county football team plays in the Connacht Senior Football Championship but has only won three senior provincial titles, in 1928, 1975 and 2007. Sligo has never appeared in an All-Ireland final. The 1922 Championship is the closest it has come, defeating Roscommon, Mayo and Galway to win the Connacht title, and beating Tipperary in the subsequent All-Ireland semi-final that followed. However, "a flimsy technicality" led to a replay of the Connacht final against Galway, which Sligo lost.
As of 2009, there were 26 clubs affiliated to Sligo GAA — the second smallest, ahead of Longford, which had 24.
Football
Clubs
Tubbercurry is the most successful team in the history of the Club Championships in Sligo, with 20 senior titles to its name. The last of these was won in 2014.
St Mary's is Sligo's most successful club team in the Provincial and All-Ireland club series with three Connacht Senior Club Football Championship titles to its name (1977, 1980 and 1983). The club also won the All-Ireland sevens title in 1980. St Mary's, along with Tubbercurry, dominated the club scene in Sligo over a fifteen-year period (1976–1991), with St Mary's claiming eight championships to Tubber's three. The pairing contested the final on eight occasions, including five in succession (1983–1987), and these finals were tense and heated encounters. In recent years Tourlestrane has dominated Sligo club football.
St Mary's and Tubbercurry also jointly lead the roll of honour for the Under-21 Championships with Tubbercurry, having both won on six occasions as of 2015.
St Mary's leads the roll of honour for the Minor Championship, with 11 titles as of 2015, having won the previous five championships in succession (2011–2015).
In the years since the dominance of St Mary's and Tubbercurry, there have been various winners of the county championship with Bunninadden, Coolera/Strandhill, Curry, Eastern Harps, Shamrock Gaels and Tourlestrane all claiming the Owen B. Hunt Cup during the past two decades. Other senior teams that have come close to winning the championship in the past few years include St John's and Easkey.
In 2005, Coolera/Strandhill won its first senior title in 98 years, having narrowly lost the 2000 final to Bunninadden, which at that time had not won a title in 109 years.
Much of the minor and underage successes within the county have seen Tubbercurry and St Mary's teams dominate this grade in recent years, with many of the titles being won by either of Sligo town's two main clubs in the past decade.
Sligo's club football scene is not dominated by any single team; there were no back-to-back winners since the St Patrick's team of 1988 and 1989, the longest out of any county in history, until Tourlestrane did the two-in-a-row in 2016 and 2017.
In club football, no Sligo team has ever appeared in an All-Ireland Senior Club Football Championship final. St Mary's is the only Sligo team to have ever won the Connacht Senior Club Football Championship, having won it three times in 1977, 1980 and 1983. Eastern Harps, Curry and Tourlestrane have all appeared in Connacht finals.
2023 club football status
County team
Due to its much smaller population than both County Galway and County Mayo, the two dominant forces in the province of Connacht, and competition from professional League of Ireland soccer team Sligo Rovers in the county's capital town. The Sligo county football team have never been able to break from the shackles inherent in the provincial championship format. They have won only three Connacht championships, with about 50 years between each win. These championships came in 1928, 1975 and 2007.