Mark Sullivan
Mark Sullivan may refer to:
- Mark J. Sullivan, director of the United States Secret Service, 2006–2013
- Mark Sullivan , South African cricketer
- Mark T. Sullivan, American author of mystery and suspense novels
- Mark Sullivan , justice on the New Jersey Supreme Court, 1973–1981
- Mark Sullivan, former secretary of the Australian Government Department of Veterans' Affairs
- Mark Sullivan, founder Snowboard Magazine
- Mark Sullivan, keyboardist for several California bands including Toiling Midgets
- Mark Sullivan, chief scientist for Eagle Eye Technologies, Inc, later SkyBitz
- Mark Sullivan, Academy Award nominated visual effects artist
- Mark Sullivan, American football coach
- Mark Sullivan , American political commentator
- Mark Sullivan, winner of the 1988 4 × 800 meter relay at the NCAA Division I Indoor Track and Field Championships