Ab Baars, born on November 21, 1955, in Axel, Netherlands, is a Dutch jazz saxophonist and clarinetist. He began playing saxophone in 1970 and studied at the Rotterdam Conservatory under Leo van Oostrom. In the 1970s, he founded the group Cumulus. Throughout the 1980s, Baars collaborated with notable artists such as Roscoe Mitchell and Misha Mengelberg’s Instant Composers Pool. In 1989, Baars received the Boy Edgar Prize. In 1990, Baars formed his own trio featuring Wilbert de Joode on bass and Martin van Duynhoven on drums. Notable albums include Hef (2001), Time to Do My Lions (2010), and OX (2012). He has also performed with Sunny Murray, Han Bennink, Steve Lacy, Roswell Rudd, Theo Jörgensmann, Ken Vandermark, Michael Moore, and Cecil Taylor.