Mortiis is a project from Notodden, Norway fronted by Håvard Ellefsen. The name is a misspelling of the Latin word "mortis" (death). Mortiis started in 1993 as the solo project of Ellefsen as a means to convey a story. This aspect was lost over time and Mortiis slowly changed into a band.
Håvard Ellefsen, often referred to as Mortiis, is the only constant band member. He was born in Skien, Telemark. Mortiis began his musical career playing bass for the black metal act Emperor.