"If I Only Had a Brain" is a song from the MGM film The Wizard of Oz. It is sung by the Scarecrow as an ode to what he would do with his life if he only had a brain. The Tin Man and Cowardly Lion sing their own variations of the song as "If I Only Had a Heart" and "If I Only Had the Nerve".

Excerpts from all three are performed in a medley of songs from the movie in The Muppets Go to the Movies.