St John's GAA may refer to:
St John's GAA (Antrim), a sports club in Belfast St John's GAA (Cork), a sports club in Aubane, Kilcorney and Mushera, Ireland St John's GAA (Down) a sports club St John's GAA (Sligo), a sports club in Carraroe, Ireland
See also Ballinteer St John's GAA, a sports club in Dún Laoghaire–Rathdown, Ireland