Let's Pretend, created and directed by Nila Mack (1891-1953), was a long-run CBS radio series for children.

The forerunner of this program was The Adventures of Helen and Mary, scriipted by Yolanda Langworthy, which was broadcast on CBS Saturdays at noon and other late morning timeslots. The program began September 7, 1929, and after it had been airing for a year, Nila Mack took over as director. With Estelle Levy and Patricia Ryan in the title roles, the fairy tale series continued until March 17, 1934. Then the title changed to Let's Pretend, "radio's outstanding children's theater"