Mortiis is a band 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. However, 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.