Deep Purple "Knocking At Your Back Door: The Best Of Deep Purple In The 80's"

Knocking at Your Back Door: The Best of Deep Purple in the 80's is a compilation album by the British hard rock band Deep Purple. The album was released in 1992.

It is a compilation of tracks from three albums, Perfect Strangers (1984), The House of Blue Light (1987), and the live album Nobody's Perfect (1988).