Zyklon-B was a Norwegian black metal band founded in 1995.
The band’s members were Tomas "Samoth" ThormodsŠter Haugen (guitar and bass) and Vegard "Ihsahn" Sverre Tveitan (keyboard) from Emperor, Kjetil "Frost" Haraldstad (Drums) from Satyricon and Bj÷rn "Aldrahn" Dencker Gjerde (vocals) from D°dheimsgard. The band recorded only one EP; other versions of the featured songs were featured on split releases with Mayhem and Swordmaster.
The band Zyklon featuring members of Zyklon-B is often thought to be the same band, which is wrong. Although the name refers to Zyklon B, a gas used in gas chambers during the Holocaust, Zyklon-B stated that they were an apolitical band.