| paziente | patient |
| paziente ambulatoriale | outpatient |
| pazienza | patience |
| Pazuzu | Pazuzu |
| pazza | lunatic |
| pazzamente | madly |
| Pazzano | Pazzano |
| Pazzesche | Folles |
| pazzesco | awful |
| Pazzi in Alabama | Crazy in Alabama |
| pazzia | foolishness |
| pazzo | stupid |
| pazzo di | enamored of |
| Paços de Ferreira | Paços de Ferreira |
| Paşcani | Paşcani |
| Paša | Pasha River |
| PBB TE | Provider Backbone Transport |
| PBK CSKA Mosca | PBC CSKA Moscow |
| Pbuh | Peace be upon him |
| PC | personal computer |
| PC Calcio | PC Fútbol |
| PC Engine | PC Engine |
| PC IBM | IBM Personal Computer |
| PC-DOS | IBM PC-DOS |
| PCDD | Polychlorinated dibenzodioxins |
| PCI | PCI |
| PCI Express | PCI Express |
| PCI X | PCI-X |
| PcLinuxOS | PCLinuxOS |
| PD | PD |
| PDA | Personal digital assistant |
| pe-tsai | bok choy |
| Peace Lines | Peace lines |
| Peace Through Superior Firepower | Peace Through Superior Firepower |
| Peach Toadstool | Princess Peach |
| PEACH-PIT | Peach-Pit |
| peana | paean |
| Peante | Poeas |
| Pearl | Pearl |
| Pearl Harbor | Pearl Harbor |
| Pearl Jam | Pearl Jam |
| PEC | PEC |
| pecan | pecan |
| pecari | peccary |
| pecari dal collare | collared peccary |
| pecca | fault |
