Charles O. Baumann (January 20, 1874 – July 18, 1931) was an American film producer, film studio executive, and pioneer in the motion picture industry.

He was a partner in the Crescent Film Company formed in 1908 and in the Bison Life Motion Pictures production company formed in 1909.

He co-founded New York Film Company with Adam Kessel in 1909.

One of his most-successful companies was the Keystone Film Company, the production unit headed by Mack Sennett, which produced the first films to feature Charlie Chaplin.

Adam Kessel and Baumann's New York Motion Picture Company produced many films under a number of brand names, including Broncho, Domino and Kay-Bee Pictures.