1990–91 SM-liiga season

The 1990–91 SM-liiga season was the 16th season of the SM-liiga, the top level of ice hockey in Finland. 12 teams participated in the league, and TPS Turku won the championship.

Quarterfinals

 * JyP HT - Tappara Tampere 2:1 (7:2, 3:4, 3:2)
 * HPK - HIFK 2:1 (2:4, 4:3, 8:3)

Semifinals

 * TPS - HPK 3:1 (8:0, 3:4, 3:0, 3:1)
 * KalPa - JyP HT 3:0 (2:1, 4:3, 3:2)

3rd place

 * HPK - JyP HT 6:3

Final

 * TPS - KalPa 4:1 (5:1, 4:3, 4:3, 2:6, 7:2)