Otis Bryant Thayer (1862 – August 16, 1935) was an American actor, director, producer and owner of silent era film production companies.

Before his film career he was a stage actor and operatic comedian.

[2] By 1910, he piloted the Chicago based Selig Polyscope Company filming westerns on locations at Canon City.

Son of William Henry Harrison and Letitia Ann (Morgan) Thayer, husband of Gertrude M. Cavagna.

Founder of Art-O-Graf Film Co., and was President and Director for General Superior Foto Play Company.