The 1991 Swedish speedway season was the 1991 season of motorcycle speedway in Sweden.
The 1991 Swedish Individual Speedway Championship final was held in Vetlanda on 21 September. Peter Karlsson won the Swedish Championship for the second time.
Jorgen Hultgren won the U21 championship.
Indianerna won the Elitserien and were declared the winners of the Swedish Speedway Team Championship for the second successive season. The Indianerna team included Henrik Gustafsson, Christer Rohlén, Mikael Blixt, Lars Gunnestad and Stefan Dannö.
Brassarna changed their name to Nässjö and ÃÂrebro changed their name to Buddys. Dackarna won the first division and Kaparna won the second division.