Mark King may refer to:
- Mark King (musician), singer and bass guitar player with Level 42
- Mark King (snooker player)
- Mark King (footballer), Northwich Victoria player
- Mark Anthony King Minor league basketball owner/player
- Mark King (politician), Belizean House of Assembly member with the United Democratic Party
- Mark King (American actor), actor who appeared in the television series Cheers
- Mark King (Hong Kong actor), actor who appeared in Once Upon a Time in China