Sears Radio Theater was a radio drama anthology series that ran weeknights on CBS Radio in 1979, sponsored by the Sears chain. Often paired with The CBS Radio Mystery Theater during its first season, the program offered a different genre of drama for each evening's broadcast.

In January 1980, the program moved from CBS to the Mutual Broadcasting System and was renamed Mutual Radio Theater. The Mutual series broadcast repeats from the CBS run until September 1980, when a short season of new dramas was presented. Sears continued as a sponsor during the Mutual run. The program turned out to be Mutual's final radio drama series. Mutual continued to broadcast repeats of the program (along with a few previously unaired episodes) until December 1981.