B
- René Barbier (1890–1981)
- Jacobus Barbireau (1455–1491)
- Pierre Bartholomée (born 1937)
- Jean-Valentin Bender (1801–1873)
- Constantin Bender (1826–1902)
- Peter Benoit (1834–1901)
- Charles Auguste de Bériot (1802–1870)
- Frank Bernaerts (born 1967)
- René Bernier (1905–1984)
- Gilles Binchois (c. 1400–1460)
- Jan Blockx (1851–1912)
- August de Boeck (1865–1937)
- Philippe Boesmans (born 1936)
- Nicolas Bosret (1799–1876)
- Francis de Bourguignon (1890–1961)
- Josse Boutmy (1697–1779)
- Johannes Brassart (c. 1400/1405–1455)
- Louis Brassin (1840–1884)
- Petrus Hercules Brehy (1673–1737)
- Dirk Brossé (born 1960)
- Antoine Busnois (c. 1430–1492)
Read more about this topic: List Of Belgian Classical Composers