deFilharmonie (known also as the Koninklijke Filharmonie van Vlaanderen, English translation as the Royal Flemish Philharmonic) is a Belgian symphony orchestra, with its principal home base in Antwerp. Founded by Gaston Ariën, Jef Maes, J.A. Zwijsen and Steven Candael in 1956 as the Antwerpse Philharmonie (Antwerp Philharmonie), it operates under the auspices of the government of Flanders. The orchestra performs in several venues around Belgium:
The current managing director (algemeen directeur) of deFilharmonie is Hans Verbugt.
Philippe Herreweghe was chief conductor (chef-dirigent) of deFilharmonie from 1998 to 2002, and now holds the title of principal conductor (Hoofddirigent) with deFilharmonie. Since the beginning of the 2008-2009 season, Jaap van Zweden has been chief conductor of the orchestra, with an initial contract of 4 years. In 2011, van Zweden is scheduled to step down from the chief conductorship. Martyn Brabbins became principal guest conductor with the orchestra in 2009, with an initial contract to 2013. In April 2010, the orchestra announced the appointment of Edo de Waart as its next chief conductor, with an initial contract of 5 years.