Blasphemy are a black/death metal band formed in Vancouver, British Columbia, Canada in 1984. The band released a demo titled Blood Upon the Altar in 1989 and their debut album, Fallen Angel of Doom, the following year through Wild Rags, a record label they had signed to while touring the United States. The band's vocalist later stated the label did not pay them as much as promised. Their second and so far last full-length studio album was the 1993 Gods of War released through Osmose Productions. In 1993, Blasphemy also took part in the "Fuck Christ Tour" and toured through Europe with Immortal and Rotting Christ. The band's July 2001 concert in Vancouver was released as a live album titled Live Ritual – Friday the 13th in 2002.

They were inactive until 2009, when they played two concerts; one in Montreal and one in Helsinki, in the Black Flames of Blasphemy festival, with Proclamation, Black Witchery, Revenge and Archgoat. In 2010, Blasphemy headlined the second installation of the Nuclear War Now! festival in Germany.