20 seasons 1979-1999
Wayne Gretzky played 20 seasons in the NHL. He played from 1978 to 1999.
Gretzky played for the Edmonton Oilers for 10 seasons, longer than he played for any other team. He was with the LA Kings for only 8 seasons.
1978-1999 see Gretzky site: http://www.gretzky.com/
Wayne Gretzky did not show a major interest to play in Olympic Hockey.
Wayne Gretzky Wife is Janet Jones Gretzky. She was born in Bridgeton Missouri, January,10,1961.
Wayne Gretzky played for the Edmonton Oilers from 1979-1988.