Wazoo is a live album by Frank Zappa, posthumously released in October 2007 as a 2-CD set consisting of the complete concert given by "The Mothers of Invention/Hot Rats/Grand Wazoo" 20-piece big band on September 24, 1972 at the Music Hall, Boston, Massachusetts, United States.

It is the last concert of a brief series of shows that marked Zappa's return to the stage after his forced temporary retirement from the touring scene due to the injuries he suffered from an assault during a concert at the Rainbow Theatre in London on December 10, 1971.

Rehearsals leading to these albums and concerts are documented on Joe's Domage (2004), while Imaginary Diseases (2006) presents live recordings with a stripped-down version of the big band named 'Petit Wazoo'.

[3] The album cover is a visual parody of Slave Market with the Disappearing Bust of Voltaire, by Salvador Dalí.

At the concert, "Big Swifty" was played between "The Adventures of Greggery Peccary" and "Penis Dimension".