| Name | Meaning | Gender | Origin |
|---|
| Pogo | | Unisex | Hebrew |
| Pokey | | Unisex | Hebrew |
| Pongo | One who smells. | Unisex | English |
| Poo | | Unisex | Hebrew |
| Pooka | | Unisex | Hebrew |
| Pop | | Unisex | Hebrew |
| Porkchop | | Unisex | Hebrew |
| Psycho | | Unisex | Hebrew |
| Puck | Elf | Unisex | English |
| Puddin | | Unisex | Hebrew |
| Pug | Short for pugnacious; combative, belligerent. A breed of dog originating in China. | Unisex | English |
| Puma | | Unisex | Hebrew |
| Pumba | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Punky | | Unisex | Hebrew |
| Quark | Subatomic particle | Unisex | English |
| Quartz | | Unisex | Hebrew |
| Quatro | | Unisex | Hebrew |
| Queen | Female ruler | Unisex | English |
| Radar | | Unisex | Hebrew |
| Rainbow | Rainbow | Unisex | English |
| Raisin | | Unisex | Hebrew |
| Rascal | One that is playfully mischievous | Unisex | English |
| Rasta | | Unisex | Hebrew |
| Reagan | Descendent of Riagán | Unisex | Gaelic |
| Rebel | One that resists of defies authority | Unisex | English |
| Ribbon | | Unisex | Hebrew |
| River | River | Unisex | English |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Rogue | | Unisex | Hebrew |