At least 18 artists have used the Leviathan moniker:
1) Leviathan, aka Wrest, is a one-man black metal project from San Francisco, California. The band was brought to life in 1998 and was put on hold in Oct. 2007 due to a legal dispute with the record label. Wrest brought the project back in January 2008 to release the latest album. Wrest plays every instrument found in Leviathan's music; guitar (electric + acoustic), drums, bass, synths, and vocals.