Silenoz, (real name Sven Atle Kopperud born on October 1976), is a Norwegian guitarist who is a founding member, along with Shagrath and Tjodalv, of the Norwegian symphonic black metal band Dimmu Borgir.

Biography
Silenoz has been behind the guitars since the band started. He composes most of the riffs and melodies that are a large part of the band's sound. He is also Dimmu Borgir's predominant lyricist, also contributing backing vocals which can be heard on "For All Tid", "Stormblåst", its re-record and "Godless Savage Garden". In the early days of the band, he used as stage name Erkekjetter Silenoz which means arch heretic, having it shortened later to Silenoz.

Before playing in Dimmu Borgir, Silenoz played in "Malefic". Another band Silenoz, or "Ed Damnator" as he was called, played rhythm guitar in was the Norwegian thrash metal band, "Nocturnal Breed". Before becoming a musician Silenoz used to work in a kindergarden.

Silenoz recently was featured as a voice actor in the Adult Swim cartoon Metalocalypse. This episode kicked off the second season of the popular show and debuted on Adult Swim Fix on Friday, September 21, 2007.

Equipment
- Jackson Guitars
- ESP Guitars
- EMG pick ups
- Marshall amplifiers
- Mesa Boogie amplifiers
- ENGL amplifiers
- Boss guitar effects
- Dean Markley - Blue Steel guitar strings
- Dunlop Tortex picks
- Shure wire-less systems

Bands

Member:
1991-1993 Malefic - guitars
1993- Dimmu Borgir - guitars
1996-1998 Nocturnal Breed - guitars, vocals 2004- Insidious Disease - guitars