| Name | Pronunciation | Meaning | English Spelling | Gender |
|---|---|---|---|---|
| Parthalán | (PAR-hal-awn) | borrowing of Bartholomew | Barclay, Bartley, Berkley | M |
| Pátraic, Pádraic | (PAH-rick) | borrowing of Latin "patrician" | Patrick | M |
| Petrán, Peadrán | (pe-TRAWN) | borrowing of Latin "petrus", seldom used | M | |
| Peadar | (PEE-dar) | modern form of Peter | M | |
| Piaras | (PEERSE) | borrowing of French Piers | Pierce, Pearce | M |
| Pilib | (PIL-ib) | borrowing of Philip | M | |
| Pól | (POHL) | borrowing of Paul | M | |
| Proinnsias | (PRAN-sis) | borrowing of Francis | M |