Mortiis is a music project from Notodden, Norway fronted by Håvard Ellefsen, who is also known as the namesake of the band. The name is a misspelling of the word "mortis", which is the pronunciation used by the band. Mortiis started as the solo project of Ellefsen as a means to convey a story. This aspect was lost over time and Mortiis slowly formed into a band. Ellefsen previously played bass in the black metal band Emperor (1991-1992), prior to forming this project in 1993.