2002–03 Belgian First Division

The 2002–03 season of the Jupiler League began on August 9, 2002, and ended on May 25, 2003. Club Brugge became champion.

Promoted teams
These teams were promoted from the second division at the start of the season:
 * K.V. Mechelen (second division champion)
 * R.A.E.C. Mons (playoff winner)

Relegated teams
These teams were relegated to the second division at the end of the season:
 * K.V. Mechelen
 * K.F.C. Lommel S.K. (withdrew before the end of the season)