| Name | Meaning | Gender | Origin |
|---|
| Ramona | Wise defender
| Female | Spanish |
| Randolph | shield-wolf | Male | English |
| Randy | Diminutive of Randolph. House wolf: protector. Mythological wolf was esteemed for courage.
| Male | English |
| Ranger | dweller in the field A warden employed to protect a forest area. | Male | |
| Ray | kingly | Male | English |
| Raymond | Guards wisely.
| Male | |
| Redmond | adviser | Male | Irish |
| Ros | | Unisex | |
| Rosetta | splendid | Female | Persian |
| Rosita | after Joey's chair in Friends | Female | Spanish |
| Sacha | helper and defender of mankind | Male | |
| Salman | protector, conqueror | Male | Arabic |
| Sandie | Protector Of Mankind | Unisex | English |
| Sandra | Helper of Mankind | Female | English |
| Sandrine | helper and defender of mankind | Female | |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Sascha | defending warrior | Male | |
| Sasha | defending men | Female | Russian |
| Saskia | Saxon | Female | Dutch |
| Schuyler | scholar | Male | Dutch |
| Selma | godly helmet | Female | |
| Seward | from the sea | Male | English |
| Sigmund | Victory: protection. Austrian psychologist Sigmund Freud.
| Male | |
| Sigurd | Victorious Guardian | Unisex | Scandinavian |
| Skylar | eternal life, strength, love and beauty | Female | Spelling |