Sumerian Daemons is the sixth studio album by the Greekdeath metal band Septic Flesh. It was released by Hammerheart Records (now known as Karmageddon Media) in 2003. It was originally the band's final album before they disbanded later the same year, until they reformed in 2007.
The cover art for the album was a real background constructed in accordance with Spiros' instructions by a Greek FX team that usually works for films and advertisements, called the Alahouzos Bros.
The words "Demon resurrection passages from The Book of the Dead" and "Two hours since I've translated and spoken aloud the demon resurrection passages from The Book of the Dead" in "Unbeliever" (2:29-2:32 and 3:56-4:03) come from horror movie Evil Dead II.