Univers Zero (also known as Univers Zéro and Univers-Zero) are an instrumental progressive Belgian band formed in 1974 by drummer Daniel Denis. The band is known for playing dark music heavily influenced by 20th century chamber music.
In 1973, Claude Deron and Daniel Denis, both former members of Belgian "Zeuhl" band Arkham (which had disbanded the previous year), set up a new group, Necronomicon. By that time, apart from Deron (trumpet) and Denis (drums), the group consisted of Roger Trigaux (guitar), Guy Segers (bass guitar), Patrick Hanappier (violin) and John Van Rymenant (sax), and, later on, Vincent Motoulle (keyboards). At the time, Guy Denis (percussion) took part in some shows and rehearsals and Jean-Luc Manderlier (keyboards) was present only during rehearsals. Necronomicon is renamed to Univers Zero in 1974.
For a time, Univers Zero were part of a musical movement called Rock in Opposition (RIO) which strove to create dense challenging music, a direct contrast to the disco and punk music being produced in the late 1970s. Obvious early influences were Bartók and Stravinsky, however the band also cited less well known composers such as Albert Huybrechts, who was also Belgian.