The Codex Necro is the first studio album by British extreme metal band Anaal Nathrakh.

The album was re-released on 24 April 2006, with four additional bonus tracks taken from the John Peel BBC Radio One Session broadcast on 16 December 2003.

[2] The person being suffocated on the album cover is Mick Kenney's younger brother.

[3] The album features sound samples from films such as Event Horizon, Excalibur, The Legend of Hell House, Omen III: The Final Conflict and Platoon[citation needed].

The 2006 re-release features the first ever live performance of "The Oblivion Gene", later to appear in its full re-recorded form on the subsequent album Domine Non Es Dignus.