John Jansen

John Jansen may refer to:

Sports

 * John Jansen (rugby league) (born 1955), Australian rugby league footballer
 * John Jansen (water polo) (born 1963), retired water polo player from the Netherlands
 * Jon Jansen (born 1976), American football player

Others

 * John Jansen (politician) (born 1947), former mayor of Chilliwack, BC, and former member of British Columbia Legislative Assembly
 * John Jansen (record producer), American recording engineer and music producer