| Name | Meaning | Gender | Origin |
| Rico | Strong Ruler | M | Spanish |
| Rida | favored by God | M | Arabic |
| Riddock | smooth field | M | Irish |
| Rider | Farmer | E | English |
| Rigby | ruler's valley | M | English |
| Rigel | foot | M | Arabic |
| Rigg | Lives near the Ridge | E | English |
| Riley | A Small Stream | E | Celtic/Gaelic |
| Rimona | Pomegranate | F | Hebrew |
| Rin | Park | E | Japanese |
| Rinah | joyful | F | Hebrew |
| Ringo | Apple | M | Japanese |
| Rini | Little Bunny | F | Japanese |
| Rio | River | M | Spanish |
| Riona | Queenlike | F | Celtic/Gaelic |
| Riordan | Royal Poet | M | Celtic/Gaelic |
| Ripley | meadow near the river | M | English |
| Risa | Laughter | F | Latin |
| Rishi | sage | M | Hindi |
| Rita | From MARGARITA | F | Spanish |
| Riva | Bound/ Riverbank | F | Hebrew |
| River | From the River | E | American |
| Rivka | Servant of God | F | Hebrew |
| Riyad | gardens | M | Arabic |
| Roald | famous ruler | M | Norwegian |
| Roana | Reddish-brown skin | F | Spanish |
| Roarke | famous ruler | M | Irish |
| Rob | From the name ROBERT | M | English |
| Robbin | Famous Brilliance | E | English |
| Robert | Bright Fame | M | English |
| Roberta | Fem. form of ROBERT/ Brilliant | F | English |
| Roberto | Bright Fame | Spanish | |
| Robin | Famous Brilliance | E | English |
| Robyn | From the name ROBIN | F | English |
| Rocco | Rest | M | German |
| Roch | Glory | F | German |
| Rochelle | A rock | F | French |
| Rochester | rocky fortress | M | English |
| Rocio | Dewdrops | E | Italian |
| Rock | A Rock | M | American |
| Rockford | rocky ford | M | English |
| Rockland | rocky land | M | English |
| Rockledge | rocky ledge | M | English |
| Rockley | rocky field | M | English |
| Rockwell | From the Rocky Spring | M | English |
| Rocky | From the Rocks | M | American |
| Rod | Land Near the Water | M | English |
| Rodd | From the name RODNEY | M | English |
| Roddy | From the name RODNEY | M | English |
| Roden | Red Valley | M | English |