Cause of Death is the second album by American death metal band Obituary. It was released on September 19, 1990. Cause of Death is considered a classic album in the history of death metal. The artwork was done by artist Michael Whelan. It is their first release with longtime member Frank Watkins on bass, and also their first and only album with guitarist James Murphy, previously of the group Death. Murphy did not contribute to the songwriting as the riffs he showed to the band would end up appearing on Disincarnate's Dreams of the Carrion Kind.
The cover art of this album was used in an H.P. Lovecraft collection, Lovecraft's Nightmare A. It was supposed to be the cover of Sepultura's album Beneath the Remains, but Roadrunner Records let Obituary use it first. Roadrunner Records forced Sepultura to use another Michael Whelan illustration for Beneath the Remains. The second portion of the painting, Lovecraft's Nightmare B was used by Demolition Hammer for their 1992 album Epidemic of Violence. The incident with Sepultura led to Igor Cavalera become upset with Roadrunner Records' Monte Connor, with Cavalera notably having a tattoo of the cover on his arm.