"Doin' Time" is a song by American band Sublime, appearing as the closing track on their self-titled third album. The lyrics tell of a cheating girlfriend, whose infidelities and poor treatment of her lover makes him feel like he is in prison. It was released as a single on November 25, 1997; the disc contained alternate versions of the song by Wyclef Jean and the Pharcyde. Additional versions appeared on the post-Bradley Nowell compilation album Second-hand Smoke and several bootlegs, including one with Snoop Dogg.

Sublime is an American rock band from Long Beach, California, formed in 1988. The band's original lineup consisted of Bradley Nowell, Eric Wilson (bass), and Bud Gaugh (drums). Lou Dog, Nowell's dalmatian, was the mascot of the band. Nowell died of a heroin overdose in 1996, resulting in the band's breakup. In 1997, songs such as "What I Got", "Santeria", "Wrong Way", "Doin' Time", and "April 29, 1992 (Miami)" were released to U.S. radio.