Todd-AO is an American post-production company founded in 1953 by Mike Todd and Robert Naify, providing sound-related services to the motion picture and television industries. For more than five decades, it was the worldwide leader in theater sound.[citation needed] The company now operates one facility in the Los Angeles area.

IndustryPost-production, broadcast media, motion pictures, television
OwnerTodd Soundelux

Todd-AO is also the name of the widescreen, 70 mm film format that was developed by Mike Todd and the Naify brothers, owners of United Artists Theaters in partnership with the American Optical Company in the mid-1950s. Todd-AO had been founded to promote and distribute this system.