William Chisholm (called II in some biographies; died 26 September 1593), bishop of Dunblane and bishop of Vaison, was a son of James Chisholm of Cromlix, and nephew to William Chisholm (I), bishop of Dunblane from 1527 to 1564, to whom he was appointed coadjutor by a brief of Pope Pius IV dated 1 June 1561.