Gillespie Creek is an intermittent stream or arroyo in Hidalgo County, New Mexico. Gillespie Creek is 11 miles long, that heads in the Animas Mountains at , and flows northeasterly until it ends in the Playas Valley, at an elevation of 4,587 feet / 1,398 meters. Its waters in flood would reach Playas Lake. Its mouth is located 24 miles south southeast of Animas. Bennett Creek is a tributary that has its confluence with Gillespie Creek at an elevation of 4,902 feet / 1,494 meters.