Castlemitchell GFC is a Gaelic Athletic Association (GAA) club in County Kildare, Ireland, who reached senior status in the 1950s and again in the 1990s from a small catchment area, and is home club of 1998 All Ireland finalist Christy Byrne.

It is also the home club Tadhg Fennin who still plays for the men's senior team, a 2000 Leinster Championship winner with Kildare also scoring a goal in the final that day against Dublin.

RIC records from 1890 show that Foxhill club had 50 members with officers listed as Lewis Higgins, Laurence Cullen and Thomas Malone.

Joe Bermingham and Jim Connor founded Castlemitchell club in 1939 and were nicknamed the "sanpits".

They purchased their own field in 1999, located about 2.5 km (1.5 mi) northeast of Castlemitchell village.