The 1945–46 season saw Rochdale compete for their 7th and final season in the wartime league (Division 3 North West).
The season consisted of 36 matches, 18 of which were in the First Championship, and the remainder were in the 2nd Championship and Division 3 North West Cup.
Rochdale finished in second place in the first championship.
This season also saw the return of the F.A.
Cup, in which Rochdale reached the third round.