Demilich is a technical death metal band from Kuopio, Finland, that started in 1990 and initially disbanded in 1995 after their full-length album, Nespithe, was released. The band is notable for their extremely guttural vocals and unorthodox harmonic approach to death metal. Nespithe is available to download for free on their official website, as well as other demos.

In 2005, the band announced a brief reformation. They did a run of shows in the United States in May/June of 2006. The band broke up after a final gig at a festival in their native Kuopio, Finland on July 22nd, 2006. The band was set to release a compilation album sometime near the end of 2007, but it did not come to fruition until 2014, when 20th Adversary of Emptiness was finally released.

Due to a long-standing promise from a member of the band, Demilich would perform again in 2010. They played a warm-up show in Kuopio on August 5th and another show on August 14th 2010 in Oulu, Finland.
In 2014 it was announced the band would be performing at 2015's Maryland Deathfest. The band also did not rule out the release of new material.