| Name | Meaning | Gender | Origin |
|---|
| Prince Harry | | Unisex | |
| Pumpkin | Large round fruit with orange skin | Male | |
| Red | A primary colour resembling the colour of blood | Male | Color |
| Redmond | adviser | Male | Irish |
| Ron Weasley | Harry's best friend.
| Male | |
| Rory | aka Rors | Male | Irish |
| Rose | Flower
| Female | Latin |
| Rowan | red-haired; rugged | Male | Scottish |
| Rua | | Unisex | |
| Ruari | Irish for red king | Unisex | |
| Ruby | Jewel
| Female | Latin |
| Rudy | From Rudolph - Famous wolf | Male | |
| Rudyard | from the red gate | Male | English |
| Rufus | Red haired | Male | Latin |
| Russell | Red as a fox. | Male | |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Saffron | A cooking spice | Female | Spice |
| Scarlett | Red | Female | English |
| Sherbert | Frozen dessert made from fruit, sugar and water. Australian slang for beer. | Unisex | |
| Simba | lion | Male | Swahili |
| Simba | from The Lion King | Male | Swahili |
| Sorrel | reddish brown | Male | Botanical |
| Sparks | | Unisex | |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |