| Name | Meaning | Gender | Origin |
|---|
| Puddin | | Unisex | |
| Puddin | | Unisex | |
| Pumba | | Unisex | |
| Punkin | | Unisex | |
| Punky | | Unisex | |
| Puppy | | Unisex | |
| Roo | | Unisex | Hebrew |
| Rumi | | Unisex | |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Sake | Alcoholic beverage made from rice. | Unisex | |
| Sammie | | Unisex | |
| Schnapps | Variety of strong liquor usually associated with Holland | Unisex | |
| Scooby | | Unisex | |
| Shorty | Of less than average size | Unisex | |
| Smokie | | Unisex | Hebrew |
| Snickers | A brand of candy bar. | Unisex | |
| Snickers | A brand of candy bar. | Unisex | |
| Snowball | | Unisex | |
| Snowflake | Single flake or crystal of snow. | Unisex | |
| Snowy | Covered with snow | Unisex | |
| Socks | Short stockings finishing above the ankle | Unisex | |
| Sox | Short stockings finishing above the ankle | Unisex | |
| Sox | Short stockings finishing above the ankle | Unisex | |
| Spanky | | Unisex | |
| Sparky | Animated, lively. | Unisex | |