St Brigid's GAA Club is a Gaelic Athletic Association club based in Castleknock, Fingal, Ireland which serves Castleknock, Clonsilla, Blanchardstown and Corduff. Its main grounds are at Russell Park, and it also has grounds in Castleknock at Beech Park and College Fort. The club supports 70 teams, from nursery level to adults, in hurling, football, camogie, women's football, handball and badminton.