| Raegan | - | Irish Name | Rain | - | American Name |
| Rainbow | - | English Name | Raphael | - | Hebrew Name |
| Ravenel | - | English Name | Reagan | - | Irish Name |
| Rebel | - | English Name | Red | - | American Name |
| Reda | - | Algerian Name | Reed | - | English Name |
| Reegan | - | American Name | Reese | - | Welsh Name |
| Regan | - | Irish Name | Reign | - | English Name |
| Remedy | - | American Name | Remi | - | French Name |
| Rene | - | French Name | Renley | - | American Name |
| Riley | - | English Name | Rio | - | Spanish Name |
| River | - | American Name | Robin | - | English Name |
| Rodriguez | - | American Name | Rong | - | Chinese Name |
| Rowan | - | Gaelic Name | Rowdy | - | American Name |
| Royalty | - | English Name | Rumor | - | American Name |
| Rusty | - | American Name | Ryan | - | Irish Name |
| Rye | - | Greek Name | Ryland | - | English Name |
| Rylee | - | Irish Name | Rylie | - | Irish Name |
| Ryo | - | American Name |
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