1989-90 OHA Junior C Season

This is a list of 1989-90 Ontario Hockey Association Junior C Standings

Leagues

 * 1989-90 COJCHL Season
 * 1989-90 EBJCHL Season
 * 1989-90 MOJCHL Season
 * 1989-90 NDJCHL Season
 * 1989-90 WOJCHL Season
 * 1989-90 GBJCHL Season
 * 1989-90 GLJHL Season

Provincials

 * 1990 Clarence Schmalz Cup