The 1988–89 Rugby Football League season was the 94th season of professional rugby league football in Britain. Fourteen teams competed from August, 1988 until May, 1989 for the Stones Bitter Championship, Premiership Trophy and Silk Cut Challenge Cup.
Springfield Borough (previously Blackpool Borough) relocated were renamed Chorley Borough.
Wigan beat Salford 22–17 to win the Lancashire Cup, and Leeds beat Castleford 33–12 to win the Yorkshire Cup.
Championship Final Standings
Second Division Final Standings
Wigan defeated St Helens 27-0 in the Challenge Cup final at Wembley Stadium before a crowd of 78,000. Ellery Hanley, Wigan's loose forward, was awarded the Lance Todd Trophy for his man-of-the-match performance. This was the first time a side had been held scoreless in a Challenge Cup final.