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- Carolus Hacquart (c. 1640–1701?)
- Jan Haderman (born 1952)
- Jean-Noël Hamal (1709–1778)
- Jos Hanniken (1912–1998)
- Hayne van Ghizeghem (c. 1445–after 1476)
- Charles-Joseph van Helmont (1715–1790)
- Wim Henderickx (born 1962)
- Léonard de Hodémont (c. 1575–1639)
- Jef van Hoof (1886–1959)
- Albert Huybrechts (1899–1938)
Read more about this topic: List Of Belgian Classical Composers