"Joe's Garage" is a single on Frank Zappa's 1979 album Joe's Garage Act I. After the introductory track, "The Central Scrutinizer", this song begins the story of Joe's Garage. Although it only charted in Norway and Sweden (where it was a top 20 hit in both countries), it was one of Zappa's songs which had the most airplay on American FM radio, at the time still album-centered. The song was played in concert from 1980 to 1988 along with the song "Why Does it Hurt When I Pee?" in all tours of Zappa's after the single's release. The single version of the song lacks many of the special effects that the album version contains. The single version of "Joe's Garage" was put onto Zappa's best-of Strictly Commercial.

The song introduces the main character Joe and another band member, Larry Fanoga. It explains that Joe, Larry, and their friends were in a band together in Joe's garage and would play the same simple song. This was a mocking commentary on many garage and punk bands of the era. They started to play this one song in a go go bar and eventually their repetitive music became well enough known where they were offered a record deal, but for some unexplained reason soon after the band broke up. Eventually they're playing in the garage so loud a neighbor calls the police on them. Then it's explained that this is "Joe's first confrontation with the law," implying that later in the story he would have more trouble with the police. The officer lets him off easy and tells him to "stick closer to church oriented social activities", another commentary about how adults of the era felt religion was a good cleanser of the evil sins of rock. This line delivered by The Central Scrutinizer also introduces the next song on the album "Catholic Girls."

The song foreshadows musical styles to be later used in the album such as sleigh bells more prominent in "Why Does it Hurt When I Pee?" an odd-sounding guitar line used in "He Used to Cut the Grass", and the line "It makes its own sauce if you add water" is later stated in the song "Crew Slut." These foreshadowings make the song more of an overture to the album.

The underlying themes of the song as well as most of the album was based upon Zappa's hatred for censorship, corporate abuse, and untalented bands becoming famous. The song was more commercial sounding than most of the other tracks on the album because it was intended to be a single as well as the main song on the album.

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