Dr. Marie Valentine McDemmond (1946 – July 27, 2022) was an American educator and third president of Norfolk State University, and the first African-American woman to serve as the head of a four-year college in Virginia. She served as president from 1997 to 2005, being the year she retired. Dr. Alvin J. Schexnider became acting president from July 2005 until June 30, 2006.