Klaus Klang, real name Claude Ongena (born 26 September 1959), is a musician from Brussels, Belgium.
After that band split in 1978, he went on to found the band Klang with his brother Kurt Klang (bass), Denis Rufin (drums), and Robert Franckson (guitar), trading drums against guitar and singing.
Shortly after releasing their second album Klang broke up, apparently due to the military obligations of some of the members.
In 1986 Klaus Klang released a successful solo single, Soul Thing.
In 2014, Klang started playing together again, with brothers Claude and Alain on guitar/lead vocals and bass respectively, Franckson on lead guitar and Paul Englebert (formerly of The Ice Creams) on drums.