Walter, Knight Boeykens (January 6, 1938 – April 23, 2013) was a Belgian conductor and a world-renowned clarinetist. Boeykens' impressive discography, including several critically acclaimed performances, are testimony to his status as one of the most notable clarinetists of the 20th century. Boeykens remained active and was in concert frequently all around the world until his death in 2013.
Boeykens studied the clarinet at the Royal Conservatory of Music Brussels. In 1965 he won the International competition for contemporary music of Utrecht (Netherlands).
Between 1964 en 1984 he was principal clarinetist of Belgian Radio and Television (BRT) Philharmonic Orchestra.
On December 20, 1968 he created Domaines by Pierre Boulez —originally written for Hans Deinzer— in the version for Clarinet and Orchestra with the BRT Philharmonic Orchestra under the direction of the composer himself.
This achievement launched him onto the path of a very successful career as a soloist. As a consequence, he was invited to many of the big European music festivals such as those of Berlin, Paris, Warschau, Salzburg, and last but not least to the festivals of Wallonia and Flanders (both in Belgium).