| Name | Meaning | Gender | Origin |
|---|
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Peanut Butter | | Unisex | |
| Pedro | A Rock | Male | Spanish |
| Penny | Greek, weaver | Female | English |
| Pepper | A spice or condiment. | Male | Sanskrit |
| Pepsi | Brand of cola soft drink. | Male | |
| Philippa | Lover of Horses. Variant of masculine Philipp.
| Female | Greek |
| Pico | | Unisex | Hebrew |
| Pinar | | Unisex | Hebrew |
| Pokey | | Male | Hebrew |
| Pretzel | Glazed, salted and brittle biscuit in the form of a knot or stick. | Male | |
| 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 | |
| Rafael | God has healed.
| Male | Spanish |
| Raisin | | Unisex | |
| Ramon | Form of Raymond Guards wisely.
| Male | Catalan |
| Reese | ardor | Female | Welsh |
| Reuben | Behold a son | Male | Hebrew |
| Richard | powerful ruler; brave one | Male | |
| Rita | pearl, precious | Female | English |
| Robert | Famed: bright: shining. 14th-century King Robert the Bruce. Robert Burns the poet.
| Male | English |
| Robin | Famed: bright: shining Form of Robert popular since the medieval days of Robin Hood. Robinson: (English) Son of Robert Famed: bright: shining. Surname.
| Male | |
| Rocky | rest | Male | English |
| Rolo | Burmese | Unisex | |
| Rosy | | Female | |