'74 Jailbreak is the only EP by Australian rock band AC/DC, released in 1984. It is composed of five tracks that had previously been released only in Australia. Despite the EP's title, the song "Jailbreak" was actually recorded in 1976 and was originally released that year on the Australian version of the Dirty Deeds Done Dirt Cheap album. The EP's four other tracks were originally released on the Australian version of the band's debut album, High Voltage, recorded in 1974 and released early the following year.
"Jailbreak" was released as a single with accompanying music video at the same time as the EP. '74 Jailbreak was later re-released worldwide in 2003 as part of the AC/DC Remasters series.