Variant spellings are included, so there may be some duplication. If you know of something that should be included, please let me know
| Palmer Belfast & Dublin |
| Pearson |
| Peel Cavn/Dublin |
| Peil Cavn/Dublin |
| Peile Cavn/Dublin |
| Peille Cavn/Dublin |
| Peirson |
| Percell (archived) |
| Pharrissy |
| Phelan |
| Phelin |
| Pierson |
| Plunket Cavan |
| Plunkett Cavan |
| Poer |
| Poer Waterford |
| Poer (archived) |
| Pollick |
| Pollock |
| Pollok |
| Portell (archived) |
| Power |
| Power Waterford |
| Power (archived) |
| Powers |
| Powers Waterford |
| Powers (archived) |
| Prendergast |
| Prentergast |
| Purcel (archived) |
| Purcell (archived) |
| Pursell (archived) |
| Purtel (archived) |
| Purtell (archived) |
| Purtil (archived) |
| Purtill (archived) |
| Purtle (archived) |