The RKO Keith's Theater was an RKO Pictures movie theater at 129-43 Northern Boulevard in the Flushing neighborhood of Queens in New York City. It was designed by architect Thomas W. Lamb and built in 1928. While the RKO Keith's had a plain three-story facade, its interior was elaborately designed in a Spanish Baroque Revival style. The theater had a square ticket lobby and an oval grand foyer, which led to the double-level auditorium. The auditorium was designed as an atmospheric theater with a blue ceiling and gilded-plaster decorations; it contained 2,974 seats across two levels. There were also four lounges and a mezzanine promenade.