John Croker is the name of:
John Croker (engraver) (1670–1741), earlier Johann Crocker, German-born engraver who worked mostly in Great Britain John Croker (politician) (1680–1751), Irish politician John Wilson Croker (1780–1857), Irish politician and author
See also John Coker (disambiguation) John Crocker (disambiguation) John Croke (disambiguation)