S
- Jacques de Saint-Luc (1616–c. 1710)
- Maurice Schoemaker (1890–1964)
- Philippus Schoendorff (1558–1617)
- Jan Segers (born 1929)
- Jean-Marie Simonis (born 1931)
- Jean-Baptiste Singelée (1812–1875)
- André Souris (1899–1970)
- Daniel Sternefeld (1905–1986)
- Jules Strens (1893–1971)
- Johannes de Stokem (c. 1445–1487 or 1501)
- Piet Swerts (born 1960)
Read more about this topic: List Of Belgian Classical Composers