G
| Name | Nationality | Century | Main area/s explored |
|---|---|---|---|
| Alfons Gabriel | Austrian | 20th | Iran |
| Dionisio Alcalá Galiano | Spanish | 18th | Pacific Northwest |
| Yuri Gagarin | Russian | 20th | Earth orbit |
| Juan Galindo | mixed | 19th | Mesoamerica (Mayan remains) |
| Estevão da Gama | Portuguese | 16th | Indian Ocean |
| Paulo da Gama | Portuguese | 15th | sea route from Europe to India |
| Vasco da Gama | Portuguese | 15th/16th | sea route from Europe to India |
| Pedro Sarmiento de Gamboa | Spanish | 16th | Solomon Islands |
| Thomas Gann | Irish | 19th/20th | Mesoamerica (Mayan remains) |
| Aleixo Garcia | Portuguese | 16th | Brazil, Paraguay and Bolivia |
| Francis Garnier | French | 19th | Mekong River |
| Pierre Gaultier de Varennes | French Canadian | 18th | North American interior |
| Romolo Gessi | Italian | 19th | the Nile, Sudan |
| Ernest Giles | Australian | 19th | central Australia |
| André Gonçalves | Portuguese | 15th/16th | Brazil |
| Antão Gonçalves | Portuguese | 15th | west African coast |
| Lopes Gonçalves | Portuguese | 15th | Atlantic Ocean |
| James Augustus Grant | British | 19th | eastern Africa |
| João Grego | Portuguese | 15th | African coast |
| Juan de Grijalva | Spanish | 16th | Mexico, Nicaragua |
| Gonzalo Guerrero | Spanish | 16th | Yucatán Peninsula |
| Charles Gwynn | British | 19th/20th | Sudan |
Read more about this topic: List Of Explorers