Enslaved is a progressive Viking/black metal band formed in 1991 in Haugesund, Norway, and currently based out of Bergen, Norway .

Enslaved was formed in May 1991 by Ivar Bjørnson and Grutle Kjellson when they were 13 and 17 years old, respectively. They had been playing in a death metal band called Phobia, but like many in the burgeoning black metal movement, they were looking for new sources of inspiration and expression. Though Enslaved began as a prototypical Norwegian black metal band, they always incorporated song structures unusual for the genre, with several of their early songs expanding past the ten-minute mark. The record Eld is often considered to be the beginning of the band's shift towards progressive metal; that album's sixteen-minute track "793 (Slaget om Lindisfarne)" is often regarded as one of the peaks of the band's career. The band's shift toward progressive black metal was rendered complete with Mardraum, which contained several multi-part epics such as "Større enn tid - Tyngre enn natt" and "Entrance - Escape"; from that point onward, the band's influence from progressive rock became stronger on each successive record, with several tracks (most prominently, "As Fire Swept Clean the Earth" from Below the Lights) even using Mellotron synthesizers. Mardraum, Monumension, and Below the Lights can be regarded as having somewhat similar styles, although there is a clear progression of sound between the albums regardless; however, Isa and Ruun show a marked departure from previous sounds, with the latter almost abandoning any trace of black metal whatsoever, apart from Kjellson's vocals.
Although the band now records in English, their early songs were mostly recorded in Icelandic or Old Norse, with one track on their first full-length album being performed in ancient Norwegian. Most of their lyrics relate to Norse mythology.
The band were also reported to have appeared in an episode of the American cartoon program South Park, but this was later revealed to be a practical joke at the expense of the Norwegian press.