Plaza is a surname. Notable people with the surname include:
Aubrey Plaza, American actress and comedian
Daniel Plaza, Spanish track-and-field Olympian
Galo Plaza, Ecuadorian politician and former President of Ecuador
Leónidas Plaza, Ecuadorian politician and former President of Ecuador, and father of Galo Plaza
Martin Plaza, Australian musician, also known as Martin Edward Murphy
Mélissa Plaza, French football player
Ron Plaza, former American Major League Baseball manager
Rubén Plaza, Spanish professional road bicyclist
Willis Plaza, Trinidadian football player
