1,039/Smoothed Out Slappy Hours

1,039/Smoothed Out Slappy Hours is a collection of early recordings by the American punk rock band Green Day. It was released on July 1, 1991 through Lookout! Records. Often referred to as the band's first album, the compilation combines its debut album 39/Smooth and its first two extended plays Slappy and 1,000 Hours. It has sold 632,000 copies in the US.

Track listing
All songs written and composed by Billie Joe Armstrong, Mike Dirnt and John Kiffmeyer, except where noted.