Ballinamore Seán O'Heslin's
The club was founded as Ballinamore in January 1889 in McGaurans Railway Hotel. Unusually for a County Leitrim club, they have always fielded teams in both hurling and Gaelic football.
Local schoolteacher Seán O'Heslin was a driving force behind the club in its early years; he died in 1942; Sean O'Heslin Memorial Park opened in 1952 and the club was renamed Ballinamore Seán O'Heslin's in his honour in 1953.
The club won twenty-one Leitrim Senior Football Championships between 1913 and 2021
O'Heslin's also reached the final of the Connacht Senior Club Football Championship on four occasions: 1968, 1973, 1986 and 1990
Senior County Titles (21)
1913, 1922, 1930, 1933, 1935, 1936, 1939, 1956, 1964, 1967, 1968, 1969, 1972, 1973, 1975, 1979, 1982, 1986, 1988, 1990, 2021