R
| Name | Nationality | Century | Main area/s explored |
|---|---|---|---|
| John Rae | British | 19th | Northwest Passage, Canadian Arctic |
| Sir Walter Raleigh | English | 16th/17th | Virginia, the Orinoco river |
| Knud Rasmussen | Danish | 20th | Arctic |
| Piri Reis | Turkish | 15th/16th | Mediterranean Sea |
| Matteo Ricci | Italian | 16th | China |
| Jacob Roggeveen | Dutch | 18th | South Pacific (Easter Island) |
| Diogo Rodrigues | Portuguese | 16th | Mascarene Islands |
| Cândido Rondon | Brazilian | 19th/20th | Brazilian interior (Amazon Basin) |
| James Clark Ross | British | 19th | Arctic, Antarctic |
| William of Rubruck | Flemish | 13th century | Central Asia |
| Henry Russell | Irish | 19th | Pyrenees |
| Ahmad ibn Rustah | Persian | 10th | Russia, Scandinavia, Arabia |
Read more about this topic: List Of Explorers