1978-79 MMJHL season

This is the 1978-79 Manitoba Major Junior Hockey League season. This is the league's ninth season.

Membership Changes

 * The Winnipeg-based St. James Canucks join the league
 * The Seven Oaks Rangers are renamed Seven Oaks Raiders and the Fort Garry/Fort Rouge Blues are renamed the Fort Garry/Fort Rouge Legion 90's
 * The River Heights Cardinals withdrew from the league

Jack McKenzie Trophy Playoffs
Won by Charleswood Hawks