Enemy of the Sun is the fourth studio album by American post-metal band Neurosis. It was originally released on Alternative Tentacles in 1993 and later reissued on Neurot Recordings in 1999. The album was reissued with new cover artwork on April 20, 2010. On February 14, 2012, a fully remastered version was released on vinyl via Relapse Records. This album is the last Neurosis album to feature Simon McIlroy, who would be replaced with Noah Landis on future albums.