Zyklon was a Norwegian blackened death metal band formed in 1998 by Samoth and Trym of Emperor, along with members of Myrkskog. Their style has been described as modern death metal with black and industrial undertones. After more than a two-year hiatus, the band officially split up in January 2010.
All the band's lyrics were written by former Emperor drummer Faust, then member of Casey Chaos' side project Scum and Italian industrial black metal band Aborym.
Despite Samoth having been in a previous Emperor side project called Zyklon-B, the two are not related; Zyklon B is the name of a lethal gas used by the Nazis during the Holocaust; "Zyklon" is, according to Samoth, a play on the word "cyclone", since the word is spelled syklon in Norwegian.