Abattoir Blues / The Lyre of Orpheus is the thirteenth studio album by the Australian alternative rock band Nick Cave and the Bad Seeds, released on 20 September 2004 on Mute Records. It is a double album of seventeen songs.

Nick Cave and the Bad Seeds are an Australian rock band formed in 1983 by vocalist Nick Cave, multi-instrumentalist Mick Harvey and guitarist-vocalist Blixa Bargeld. The band has featured international personnel throughout its career and presently consists of Cave, violinist and multi-instrumentalist Warren Ellis, bassist Martyn P. Casey, guitarist George Vjestica, keyboardist/percussionist Larry Mullins, also known as Toby Dammit, and drummers Thomas Wydler (Switzerland) and Jim Sclavunos. Described as "one of the most original and celebrated bands of the post-punk and alternative rock eras in the '80s and onward", they have released seventeen studio albums and completed numerous international tours.