Jason King may refer to:
- Jason King (American football) (born 1993), offensive lineman for the New England Patriots
- Jason King (ice hockey) (born 1981), ice hockey player
- Jason King (radio) (born 1975), British radio DJ
- Jason King (rugby league) (born 1981), Manly Sea Eagles rugby league player
- Jason King (speedway rider) (born 1985), English speedway rider
in fiction:
- Jason King (TV series), British television programme
- Jason King (character), fictional character in Jason King and Department S