Vocalist Jun-His' real name is Juho Vanhanen. He is a former member of Finnish surrealistic rock band Kuolleet Intiaanit (2000-2007), and Oranssi Pazuzu are sometimes described as a black metal version of Kuolleet Intiaanit.

The band's motto is "Oranssi Pazuzu makes music that invites all the arsonists and smokers to hold hands."

Oranssi (Orange) in the band's name refers to cosmic energy and the color of the first light rays in the Big Bang, while Pazuzu is a mythic demon of the wind, also appearing in the film The Exorcist.

Oranssi Pazuzu is Finnish for Orange Pazuzu.