G
- Lucien Gekiere (1912–1990)
- Frans Geysen (born 1936)
- Géry de Ghersem (1573/1575–1630)
- Mathias van den Gheyn (1721–1785)
- Johannes Ghiselin (Verbonnet) (fl. 1491–1507)
- Paul Gilson (1865–1942)
- Elias Gistelinck (1935–2005)
- Félix Godefroid (1818–1897)
- Lucien Goethals (1931–2006)
- Karel Goeyvaerts (1923–1993)
- Nicolas Gombert (c. 1495–c. 1560)
- François Joseph Gossec (1734–1829)
- André Ernest Modeste Grétry (1741–1813)
- Albert Grisar (1808–1869)
Read more about this topic: List Of Belgian Classical Composers