Knife is the second album by Scottish indie pop group Aztec Camera, released on 21 September 1984.

Shortly after New Years Day 1984, Aztec Camera went through a significant line-up change that saw the retention of frontman Roddy Frame and bassist Campbell Owens, adding drummer David Ruffy, guitarist Malcolm Ross of Orange Juice and keyboardist Guy Fletcher of Dire Straits.

Author Dave Thompson wrote in his book Alternative Rock (2000) that this shift altered Frame's vision for the band; taking cues from Elvis Costello, Frame set about making what Thompson said was the "far wordier, if no less obsessively introspective canvas" which became Knife.

"[4] During 1984, Aztec Camera's profile had been outmatched by the popularity of the Smiths, who Thompson said had borrowed from Frame's musical intent and made it more accessible.

[4] Thompson wrote that the "dubious recruitment" of Knopfler became a "godsend as Frame's earlier fragility starts turning towards darker, earthen energies.