| Name | Nationality | Period | Tunes |
|---|
| Gabriel, Charles Hutchinson |  | 1856–1932 | 2 |
| Galilei, Vincenzo |  | 1520–1591 | 1 |
| Galli, Raffaele | | 1824–1889 | 2 |
| Galway, James |  | 1939— | 1 |
| Gariboldi, Giuseppe | | 1833–1905 | 169 |
| Gaubert, Philippe |  | 1879–1941 | 3 |
| Gilfert, Charles H. | | 1787–1829 | 2 |
| Gilmore, Patrick |  | 1829–1892 | 1 |
| Giordani, Tommaso | | 1751–1798 | 1 |
| Giordani, Tommaso | | 1730–1806 | 1 |
| Glinka, Mikhail |  | 1804–1857 | 1 |
| Gluck, Christoph Willibald |  | 1714–1787 | 4 |
| Godard, Benjamin | | 1849–1895 | 3 |
| Goldfarb, Israel | | 1879–1967 | 1 |
| Goldfarb, Samuel E. | | 1891–1978 | 1 |
| Goss, John | | 1800–1880 | 1 |
| Gossec, François-Joseph |  | 1734–1829 | 2 |
| Gounod, Charles | | 1818–1893 | 3 |
| Gow, John | | 1764–1826 | 1 |
| Gow, Nathaniel | | 1763–1831 | 2 |
| Gow, Niel | | 1727–1807 | 2 |
| Grainger, Percy |  | 1882–1961 | 1 |
| Granom, Lewis | | 1700–1782 | 25 |
| Grape, John Thomas | | 1835–1915 | 1 |
| Grétry, André | | 1741–1813 | 3 |
| Grieg, Edvard |  | 1843–1907 | 10 |
| Gripp, Parry | | 1967— | 6 |
| Gruber, Edmund L. | | 1879–1941 | 1 |
| Gruber, Franz |  | 1787–1863 | 1 |
| Guion, David | | 1892–1981 | 1 |
| Guthrie, Woody | | 1912–1967 | 1 |
| Gutiérrez, Pedro Elías |  | 1870–1954 | 1 |