Mad, Bad and Dangerous to Know is the third studio album by the English pop band Dead or Alive, released in December 1986 on Epic Records.

Continuing their association with the Stock Aitken Waterman (SAW) production team, Dead or Alive scored several hit singles from this album, including "Brand New Lover" and "Something in My House".

The phrase "Mad, Bad, and Dangerous to Know" itself comes from a statement by Lady Caroline Lamb describing controversial English literary figure Lord Byron.

[9] Burns expressed frustration with his record company's attitude to his single choices, complaining the label only relented on scheduling "Brand New Lover" for release after Bananarama had a hit with their Dead or Alive-inspired cover of "Venus", and alleging they also refused to give "Something in My House" a Halloween release date.

[8] Fellow album engineer Yoyo described tensions as mostly good humoured and centred on artistic disagreements, rather than personal animosity.