| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 401 | Raulo | Spanish | Wise. | M | |
| 402 | Rayman | Spanish | Form of Raymond 'Guards wisely.'. | M | |
| 403 | Raymon | Spanish | Form of Raymond 'Guards wisely.'. | M | |
| 404 | Renaldo | Spanish | Counselor-ruler. | M | |
| 405 | Renato | Spanish | To rise again. | M | |
| 406 | Reno | Spanish | Abbreviation of names like Moreno. A city in Nevada. | M | |
| 407 | Rey | Spanish | King. | M | |
| 408 | Reyes | Spanish | Kings. | M | |
| 409 | Reynaldo | Spanish | Counselor-ruler. | M | |
| 410 | Reynardo | Spanish | Strong counselor. | M | |
| 411 | Ricardo | Spanish | Strong ruler. | M | |
| 412 | Richie | Spanish | Variant of Richard. | M | |
| 413 | Rico | Spanish | Strong ruler. | M | |
| 414 | Rio | Spanish | River. Abbreviation of names ending with '-rio.'. | M | |
| 415 | Ritchie | Spanish | Variant of Richard. | M | |
| 416 | Roano | Spanish | Reddish brown skin. | M | |
| 417 | Roberto | Spanish | Spanish form of Robert 'shining fame'. | M | |
| 418 | Rodas | Spanish | Roses. | M | |
| 419 | Roderigo | Spanish | Notable leader. | M | |
| 420 | Rodolfo | Spanish | Spanish form of Rudolph 'famous wolf'. | M | |