| Name | Meaning | Gender | Origin |
|---|
| Rosalind | Weak, tender or soft horse | Female | Germanic |
| Rosalyn | Weak, tender or soft horse | Female | Germanic |
| Rosamund | Horse protection | Female | German |
| Rosemarie | Sea dew | Female | Latin |
| Rosie | Rose | Female | Latin |
| Roxanne | Star | Female | Persian |
| Roxy | Star | Female | Persian |
| Roz | Weak, tender or soft horse | Female | Germanic |
| Ruby | Red | Female | Latin |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sabine | Of the Sabine tribe | Female | Latin |
| Sabre | | Unisex | Hebrew |
| Sadie | Princess | Female | Hebrew |
| Sammy | His name is God | Unisex | Hebrew |
| Sara | Princess | Female | Hebrew |
| Sascha | Defending men | Unisex | Greek |
| Sasha | Defending men | Unisex | Greek |
| Saskia | Saxon woman | Female | Dutch |
| Sassy | Lively and spirited | Unisex | English |
| Saxon | Sharp blade | Female | German |
| Schmetterling | Butterfly | Female | German |
| Schnapps | Variety of strong liquor usually associated with Holland | Unisex | English |
| Scout | Observer | Unisex | American English |
| Selma | Helmet of God | Female | German |
| Senta | Conquering | Female | Latin |
| Seraphina | From seraphim, meaning fiery ones | Female | Latin |
| Serilda | Armored Battle Maiden | Female | English |
| Shadow | Shadow | Unisex | English |
| Sheba | Daughter of an oath | Female | Hebrew |
| Simba | Lion | Female | Swahili |