| Name | Gender | Meaning | Favorites |
| Rico | Boy | Strong ruler | |
| Roana | Girl | Reddish-brown skin | |
| Roberto | Boy | Famous | |
| Rosalia | Girl | Combination of Rose and Lily | |
| Rosalind | Girl | Fair Rose | |
| Rosaline | Girl | Fair Rose | |
| Roz | Girl | Derived from rosalind | |
| Sancha | Girl | Holy | |
| Sanson | Boy | Of the sun | |
| Santiago | Boy | Form of james | |
| Senalda | Girl | A sign | |
| Senona | Girl | Lively | |
| Silverio | Boy | Greek god of trees | |
| Silvino | Boy | Greek god of trees | |
| Sonora | Girl | Pleasant sounding | |
| Tadeo | Boy | Praise | |
| Taurino | Boy | Bull like | |
| Tauro | Boy | Bull like | |
| Telmo | Boy | Saint Elmo | |
| Teresa | Girl | Harvester | |
