Gailey Reservoir is a pair of canal feeder reservoirs in South Staffordshire, separated by a dam, and owned by the Canal & River Trust. Gailey Upper Reservoir is to the east; Gailey Lower Reservoir to the west.
A connected reservoir, Calf Heath Reservoir, stands a little further to the west, beyond the M6 motorway. Calf Heath Reservoir is also where Greensforge Sailing Club is located. Greensforge Sailing Club is one of the oldest sailing clubs in the Midlands.