What's Opera, Doc? is a 1957 American Warner Bros. Merrie Melodies cartoon directed by Chuck Jones and written by Michael Maltese. The short was released on July 6, 1957, and stars Bugs Bunny and Elmer Fudd.

Plot

Dressed as the demigod Siegfried (and cutting a less than impressive figure as such), Elmer Fudd is pursuing Bugs Bunny when he finds rabbit tracks and arrives at Bugs' hole. Elmer jams his spear into the hole while singing "Kill the wabbit!" repeatedly to the tune of Ride of the Valkyries. Bugs sticks his head out of another rabbit hole and converses with Elmer about his spear and magic helmet. This prompts a display of Elmer-as-Siegfried's "mighty powers". Bugs flees in fear, and the chase begins.