| Name | Meaning | Gender | Origin |
|---|
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Robby | Abbreviation of Robert Famed: bright: shining.
| Male | |
| Rocco | rest | Male | Italian |
| Rory | aka Rors | Male | Irish |
| Rowan | red-haired; rugged | Male | Scottish |
| Roy | regal one, Red haired | Male | |
| Ryder | cavalryman, messenger | Male | British |
| Sam | to hear | Male | English |
| Sammy | Hebrew, told by God | Male | English |
| Sean | God's grace | Male | Irish |
| Seth | The appointed by God | Male | Hebrew |
| Shane | God is gracious | Male | Irish |
| Shaun | Irish variation of John, God is gracious | Male | Spelling |
| Shawn | God is gracious | Male | Spelling |
| Sloth | | Unisex | Hebrew |
| Stretch | To extend to full length. | Unisex | |
| Theo | divine gift | Male | English |
| Todd | fox | Male | English |
| Tom | Bartender at the Leaky Cauldron.
| Male | English |
| Tommy | From Thomas - The twin. | Male | English |
| Travis | crossing | Male | |
| Trevor | Neville's toad.
| Male | Welsh |
| Tucker | Tucker of doth
| Male | English |
| Wade | a ford | Male | English |
| Wylie | Wily: full of wiles, cunning. enchanting | Male | English |