Plantinga is a surname. Notable people with the surname include:
Alvin Plantinga (born 1932), American analytic philosopher Cornelius Plantinga (born 1946), president of Calvin Theological Seminary in Grand Rapids, Michigan from 2002 through 2011 Klaas Plantinga (1846–1922), Dutch distiller and founder of the Plantinga Distillery in Bolsward Leon Plantinga, American musicologist Piet Plantinga (1896–1944), Dutch water polo player