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| Name. |
County. |
Meaning. |
| oooooooooooooooooooo | ooooooooooooooo | |
| Park | Irish Pairc, a field. | |
| Parkmore | Great field. | |
| Phoenix Park | Co Dublin | Took its name from a beautiful spring well near the Viceregal Lodge, called Fionn-uisg' [feenisk], clear or limpid water. |
| Poll | A hole, pit, or pool. | |
| Pollacappul | Poll-a'-chapaillt the hole of the horse. | |
| Pollagh | A place full of holes or pits. | |
| Pollanass | At Glendalough; the pool of the waterfall. | |
| Pollans | Holes, pools, or pits. | |
| Pollaphuca | The pooka's or demon's hole. | |
| Pollrone | Co Kilkenny | Poll-Ruadhain [Ruan], Ruadhan's hole. |
| Pollsallagh | Pollsillagh; the hole of the sallows. | |
| Portlaw | Co Waterford; | Port-lagha, the bank or landing place of the hill. |
| Portmarnock; | St. Mernoc's bank or landing place. | |
| Portnashangan | The port, bank, or landing place of the seangans or pismires. | |
| Portraine | ; see Lambay island. | |
| Portrush | Co Antrim; | Port-ruis, the landing place of the peninsula. |
| Portumna | Co Galway; | Port-omna, F.M., the landing place of the oak. |
| Pottle | Co Cavan | A measure of land. |
| Preban | Prebaun, Pribbaun; Preaban, a patch. | |
| Pubble; | Pobul, people, a congregation. | |
| Pubblebrien | Co Limerick | O'Brien's people; for it was the patrimony of the O'Briens. |
| Pullagh | A place full of holes. | |
| Pullans | Pullens; little holes or pits. |
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