Johnny the Fox is the seventh studio album by Irish hard rock band Thin Lizzy, released in 1976. This album was written and recorded while bassist/vocalist Phil Lynott was recovering from a bout of hepatitis that put him off the road halfway through the previous Jailbreak tour. "Don't Believe a Word" was a British hit single. Johnny the Fox was the last Thin Lizzy studio album on which guitarist Brian Robertson featured as a full member of the band, as the personality clashes between him and Lynott resulted in Robertson being sacked, reinstated, and later sacked again.

Thin Lizzy are an Irish hard rock band formed in Dublin in 1969. Thin Lizzy initially consisted of bass guitarist, lead vocalist and principal songwriter Phil Lynott, drummer Brian Downey, guitarist Eric Bell and organist Eric Wrixon, although Wrixon left after a few months. Bell left at the end of 1973 and was briefly replaced by Gary Moore, who himself was replaced in mid-1974 by twin lead guitarists: Scott Gorham, who remained with the band until their break-up in 1983, and Brian Robertson, who remained with the band until 1978 when Moore re-joined. Moore left a second time and was replaced by Snowy White in 1980, who was himself replaced by John Sykes in 1982. The line-up was augmented by keyboardist Darren Wharton in 1980. The singles "Whiskey in the Jar" (1972), "The Boys Are Back in Town" (1976) and "Waiting for an Alibi" (1979) were international hits, and several Thin Lizzy albums reached the top ten in the UK. The band's music reflects a wide range of influences, including blues, soul music, psychedelic rock and traditional Irish folk music, but is generally classified as hard rock or sometimes heavy metal.