Otto Lederer (April 17, 1886 – September 3, 1965) was an Austria-Hungary-born American film actor.
He appeared in 120 films between 1912 and 1933, most notably The Jazz Singer, the first full-length film to have sound sequences, and the Laurel and Hardy short You're Darn Tootin'.
He was born in Prague, and died in Woodland Hills, Los Angeles.
He was married to actress Gretchen Lederer.
Otto was entombed in Glendale's Forest Lawn Memorial Park Cemetery.