| Rudy | | ROO-dee | English | |
| Rudyard | | RUD-yərd | English (Rare) | |
| Rue | | ROO | English | |
| Rufina | | - | Russian, Spanish, Ancient Roman | |
| Rufinus | | - | Ancient Roman | |
| Rufus | | ROO-fəs (English) | Ancient Roman, English, Biblical | |
| Rupa | | - | Indian, Hindi, Marathi, Bengali, Nepali | |
| Rupert | | RUY-pərt (Dutch), ROO-pərt (English), RUW-pert (Polish) | German, Dutch, English, Polish | |
| Russ | | RUS | English | |
| Russel | | RUS-əl | English | |
| Russell | | RUS-əl | English | |
| Rusty | | RUS-tee | English | |
| Ruth (1) | | ROOTH (English), ROOT (German) | English, German, Dutch, Swedish, Norwegian, Danish, Spanish, Biblical, Biblical Latin | |
| Ruthie | | ROOTH-ee | English | |
| Ryan | | RIE-ən | Irish, English | |