Otis is a mad and unkempt Chihuahua from Disney's 2001 film Lady and the Tramp II: Scamp's Adventure. He is voiced by Rob Paulsen.
Otis is first seen at the dog pound when the Dogcatcher puts Scamp into the kennel with Reggie, to which Otis laughs and tells Scamp that he is in the wrong cage. Tramp eventually bursts into the pound when Reggie is about to land a fatal blow on Scamp. After a prolonged fight, Otis laughs again when he sees Scamp knocked out and claims that he is done for. When Scamp later wakes up, the dogcatcher comes in to recapture him, but is defeated by Angel. As Tramp, Scamp and Angel leave the pound, Otis is still laughing but then yells at them to come back and free him as well, which they don't do. It is unknown what happens to him afterwards.