David Kweksilber (1973) is a clarinettist and a saxophonist, at home in both composed and improvised music. Kweksilber is a soloist and ensemble player who has played in ensembles such as Asko|Schönberg and the New Cool Collective Big Band. In 2008 he founded his own big band for contemporary improvised music, the David Kweksilber Big Band. He regularly performs with the pianist Guus Janssen.