| Name | M/F | Meaning |
|---|---|---|
| Paetus | ![]() |
Meaning : Used in : Celtic |
| Patendinus | ![]() |
Meaning : Used in : Celtic |
| Pembroke | ![]() |
Meaning : Bluff, Headland. Used in : British, Celtic, English, Irish |
| Pembrook | ![]() |
Meaning : Bluff, Headland. Used in : Celtic |
| Pert | ![]() |
Meaning : From The Thorn Bush Or Thicket. Used in : Celtic |
| Pesrut | ![]() |
Meaning : Used in : Celtic |
| Phelan | ![]() |
Meaning : Wolf. Used in : Hindu, Celtic, Gaelic, Irish |
| Piran | ![]() |
Meaning : St. Piran Is The Cornish Patron Saint Of Miners. Used in : Australian, Celtic, Irish |
| Pisear | ![]() |
Meaning : Used in : Celtic |
| Potitus | ![]() |
Meaning : Used in : Celtic |
| Potomarus | ![]() |
Meaning : Used in : Celtic |
| Powell | ![]() |
Meaning : Son Of Howell. Used in : Australian, British, Celtic, English, Australian |
| Prasutagus | ![]() |
Meaning : In Anglo meaning is : Name of a king Used in : Anglo, British, Celtic, English |
| Pridfirth | ![]() |
Meaning : Used in : Celtic |
| Pryderi | ![]() |
Meaning : Care. Used in : Celtic |
| Pwyll | ![]() |
Meaning : Mythical Lord Of Annwn. Used in : Australian, Celtic |