| Name | Meaning | Gender | Origin |
|---|
| Popeye | | Male | |
| President | Country leader of a republic. Chief executive of the USA. | Unisex | |
| Presto | | Male | Hebrew |
| Prince | Principal one: first. The rock musician Prince.
| Male | Latin |
| Prodigy | | Unisex | |
| Propecia | | Unisex | |
| Proton | | Unisex | Hebrew |
| Puddles | | Male | Hebrew |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Male | |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Male | |
| Pumpkin | Large round fruit with orange skin | Male | |
| Punky | | Unisex | |
| Qantas | | Unisex | Hebrew |
| Quartz | | Male | |
| Queeny | | Unisex | Hebrew |
| Ra | sun | Male | Egyptian |
| Ragdoll | | Unisex | Hebrew |
| Rags | | Male | |
| Rain | | Male | |
| Raison | Thinker | Unisex | French |
| Ralph | Red wolf
| Male | English |
| Ralph | Red wolf
| Male | English |
| Ranger | dweller in the field A warden employed to protect a forest area. | Male | |
| Razor | A sharp-edged cutting instrument used to remove hair. | Unisex | |
| Razzmatazz | | Unisex | |