There are several bands under the name of Ahriman, three bands in particular. 1.There is the black metal band from hungary. 2. There is also a Black/Death Metal band called Ahriman from Toledo, Ohio. They formed as Disgust in 1991, releasing one demo in 1993 entitled "Ancient Hatred." They later changed their name to Ahriman and released one album in 2004 entitled "Politically Incorrect." 3.Then there is also a metalcore band from the US florida with one album called Origin:Endings.