| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 321 | Pellam | ArthurianLegend | Father of Pelles. | M | |
| 322 | Pellanor | ArthurianLegend | Name of a king. | M | |
| 323 | Pellean | ArthurianLegend | Percival's father. | M | |
| 324 | Pelleas | ArthurianLegend | A Fisher king. | M | |
| 325 | Pelles | ArthurianLegend | A Fisher king. | M | |
| 326 | Pellinore | ArthurianLegend | Name of a king. | M | |
| 327 | Perceval | ArthurianLegend | Hero of several Arthurian stories. | M | |
| 328 | Percival | ArthurianLegend | Hero of several Arthurian stories. | M | |
| 329 | Percyvelle | ArthurianLegend | Hero of several Arthurian stories. | M | |
| 330 | Peredwus | ArthurianLegend | Name of a king. | M | |
| 331 | Petrus | ArthurianLegend | One of Joseph's disciples. | M | |
| 332 | Pridwyn | ArthurianLegend | Name of Arthur's ship. | F | |
| 333 | Prydwyn | ArthurianLegend | Name of Arthur's ship. | F | |
| 334 | Pslomydes | ArthurianLegend | A knight. | M | |
| 335 | Quinevere | ArthurianLegend | Arthur's queen. | F | |
| 336 | Ragnall | ArthurianLegend | Gawain's wife. | F | |
| 337 | Rion | ArthurianLegend | A pagan giant. | M | |
| 338 | Rivalen | ArthurianLegend | Tristan's father. | M | |
| 339 | Royns | ArthurianLegend | A Welsh king. | M | |
| 340 | Ryence | ArthurianLegend | A Welsh king. | M | |