Cosey is both a given name and surname. Notable people with the name include:
Given name
Cosey Coleman, American football player Cosey Fanni Tutti, British performance artist and musician
Surname
Glenn Cosey, American basketball player Joseph Cosey, American forger Pete Cosey, American guitarist Quenton DeCosey, American basketball player Ray Cosey, American baseball player Tony Cosey, American long-distance runner
Pseudonym
Cosey, Swiss comics artist