Otto Meyer is one of the antagonists in the movie It's a Mad Mad Mad Mad World.
He first encounters Lenny on the road after Lenny's truck breaks down. After learning that there is a large sum of money buried under a "big W" in Santa Rosita, Otto strands him by the road. Lenny swears vengence and pursues Otto all the way to Santa Rosita.
Otto is a smooth talking con man through and through and tricks many people by lying about his identity. When Lenny confronts him at a gas station, he tells the attendants that he is a doctor and Lenny is an escaped mental patient so that they knock him out and tie him up. Otto later tricks a man into giving up his car by telling him that he's a secret agent and that he's being followed by spies.