Nightlife is the fourth studio album by Irish band Thin Lizzy, released in 1974. It was produced by Ron Nevison and bandleader Phil Lynott, and was the first album to feature the band as a quartet with newcomers Scott Gorham and Brian Robertson on guitars.
Some reissue CDs, and occasionally other sources, spell the album title as Night Life, the same as the song title. However the original album title is Nightlife.
The song "Philomena" was written for Lynott's mother.