| Author | Titles | | 1.
| Gruel, Léon, 1841-1923 | 1 | | 2.
| Gruen, John, 1926-2016 | 2 | | 3.
| Gruen, Victor, 1903-1980 | 5 | | 4.
| Gruénais, P.-A. | 1 | | 5.
| Gruffdd, Bodfan | 1 | | 6.
| Gruijthuijsen, Krist, 1980- | 3 | | 7.
| Grulli, Antonio, 1979- | 4 | | 8.
| Grumann, Uwe, 1913- | 1 | | 9.
| Grumbach, Antoine | 1 | | 10.
| Grumberg, Jean-Claude | 1 |
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