John Stewart, Earl of Mar may refer to:
*
John Stewart, Earl of Mar (d. 1479) (1450s–1470s), son of James II of Scotland
*
John Stewart, Earl of Mar (d. 1503) (1470s–1503), son of James III of Scotland
See also
*
John Stewart (disambiguation) John Stewart may refer to:
Business
* John Aikman Stewart (1822–1926), American banker
* John Killough Stewart (1867–1938), businessman and philanthropist in Queensland, Australia
* John K. Stewart (1870–1916), American entrepreneur and in ...
{{hndis, Stewart, John