Burzum (; Norwegian: [ˈbʉ̀rtsʉm]) is a Norwegian music project founded by Varg Vikernes in 1991. Although Burzum never played live performances, it became a staple of the early Norwegian black metal scene and is considered the most influential act in black metal's history. Vikernes has also released five dark ambient and neofolk albums. The word "burzum" means "darkness" in the Black Speech, a fictional language crafted by The Lord of the Rings writer J. R. R. Tolkien. Burzum's lyrics and imagery are often inspired by fantasy and Norse mythology.
Vikernes founded Burzum in 1991 and recorded the first four Burzum albums between January 1992 and March 1993. From 1994 to 2009, Vikernes was imprisoned for the murder of Mayhem guitarist Øystein "Euronymous" Aarseth and the arson of three churches. While imprisoned, he recorded two dark ambient albums using only synthesizers, as he had no access to drums, guitar, or bass. Since his release from prison in 2009, he has recorded several more albums. Vikernes announced the end of Burzum in 2018, releasing the project's final album Thulêan Mysteries in 2020. The project had been dormant until 2023, when Vikernes released a new song called “The Reincarnation of Ódinn”.