The 1978 Swedish speedway season was the 1978 season of motorcycle speedway in Sweden.
The 1978 Swedish Individual Speedway Championship final was held on 26 August at the Snälltorpet in Eskilstuna. Anders Michanek won the Swedish Championship for the fourth time.
Winner - Lennart Bengtsson
Getingarna won division 1 and were declared the winners of the Swedish Speedway Team Championship for the ninth time. The team included the riders Anders Michanek, Tommy Nilsson and Richard Hellsén.
The team name for Stjärnorna (The Stars) was changed to Rospiggarna.
Lejonen won the second division, while Pilarna and Filbyterna won the third division north and south respectively.