| Name | Meaning | Gender | Origin |
|---|
| Niall | Champion | Unisex | Gaelic |
| Niamh | Radiance | Unisex | Gaelic |
| Nipper | A small boy | Unisex | English |
| Pal | A friend, buddy, chum. | Unisex | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pip | Lover of horses | Unisex | Greek |
| Pipsqueak | | Unisex | Hebrew |
| Poco | Little. | Unisex | English |
| Puddles | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Rascal | One that is playfully mischievous | Unisex | English |
| Romy | Sea dew | Unisex | Latin |
| Rusty | Rusty, full of rust | Unisex | American English |
| Rylee | Rye clearing | Unisex | English |
| Sammy | His name is God | Unisex | Hebrew |
| Sasha | Defending men | Unisex | Greek |
| Sassy | Lively and spirited | Unisex | English |
| Shadow | Shadow | Unisex | English |
| Shorty | Of less than average size | Unisex | English |
| Slim | Slender in proportion to height. | Unisex | English |
| Sloane | Fighter | Unisex | American English |
| Sparky | Animated, lively. | Unisex | English |
| Squirt | Slang for a small person | Unisex | English |
| Stumpy | A short, thickset person | Unisex | English |
| Sweetie | Sweetheart. | Unisex | English |
| Tiny | Extremely small | Unisex | English |
| Tipper | Nickname And Variant Of The Irish Name Tabar Meaning A Well. | Unisex | English |
| Toby | God is good | Unisex | Hebrew |
| Toffee | A hard brown, chewy candy | Unisex | English |
| Tootsie | A girl or young woman. | Unisex | English |