| Name | Meaning | Gender | Origin |
|---|
| Otto | Wealth | Male | German |
| Pablo | Small | Male | Latin |
| Paco | From France | Male | Latin |
| Paddy | Patrician | Male | Latin |
| Pal | A friend, buddy, chum. | Unisex | English |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Parker | Gamekeeper of a park | Male | English |
| Paws | | Unisex | Hebrew |
| Pepper | Pepper | Female | English |
| Petey | Stone | Unisex | Greek |
| Plato | Liberal | Male | Greek |
| Pluto | Wealth, riches | Unisex | Greek |
| Pogo | | Unisex | Hebrew |
| Porkchop | | Unisex | Hebrew |
| Porter | One who carries goods | Male | Latin |
| Pretzel | Glazed, salted and brittle biscuit in the form of a knot or stick. | Unisex | English |
| Prince | Royal son | Male | English |
| Radar | | Unisex | Hebrew |
| Ralph | Wolf council | Male | Germanic |
| Ram | Pleasing | Male | Sanskrit |
| Rambo | | Unisex | Hebrew |
| Ranger | Gamekeeper | Male | English |
| Rascal | One that is playfully mischievous | Unisex | English |
| Raven | Raven | Male | English |
| Reagan | Descendent of Riagán | Unisex | Gaelic |
| Rebel | One that resists of defies authority | Unisex | English |
| Remington | Settlement on the boundary stream | Male | English |
| Reuben | Behold, a son | Male | Hebrew |
| Rex | King | Male | Latin |
| Ringo | Apple, peace be with you | Male | English |