is an Irish association football club based in Kilcully Park, near Glanmire and Blackpool, Cork.

The club has previously played in the Cork Athletic Union League.

1949–50 also saw the club win its first trophy, the Munster Youth Cup, after defeating Clonmel Town 2–1 in the final at Turners Cross.

[7][8][9][10] In 1971–72 they also reached the final of the FAI Junior Cup but lost to Talbot (Dublin).

[10] During the mid-1980s St. Mary's also moved away from their original Cork city base to their current home at Kilcully Park.