Marcus Aurelius Foster (March 31, 1923 – November 6, 1973) was an American educator who gained a national reputation for educational excellence while serving as principal of Simon Gratz High School in Philadelphia, Pennsylvania, as Associate Superintendent of Schools in Philadelphia, and as the first black Superintendent of the Oakland Unified School District in Oakland, California. Foster was murdered in 1973 by members of the Symbionese Liberation Army.
He was born in Athens, Georgia, later attending public schools in Philadelphia. His mother Alice fostered Marcus's mastery of Standard English by highlighting its importance as the dominant syntax. Subsequently, as a young man he was both exceptionally scholastic, athletic and rebellious, opting to frequent the Club Ziger where one had to "smoke a stogie and drink a lot of wine to get in. Furthermore, as a member of the Trojans, a neighborhood men's club, his comrade Frye noted Foster "could hold his hands up"". This broad range of youth experience aided Foster throughout his life, affording him a disposition to connect with and inspire students of myriad backgrounds while drawing together disparate groups advocating for alternative, at times oppositional, visions of social reform. He graduated from Cheyney State College and earned a doctorate from the University of Pennsylvania.