| PV | PV |
| PVC | Cloruro di polivinile |
| PW | prigioniero di guerra |
| Pwani Region | Regione di Pwani |
| PX | PX |
| PY | PY |
| Pyasina River | Pjasina |
| Pyatigorsk | Pjatigorsk |
| Pyay | Prome |
| Pybba of Mercia | Pybba |
| Pye | Pia |
| pyelitis | pielite |
| Pyeongchang County | PyeongChang |
| Pygmalion | Pigmalione |
| Pygmalion effect | Profezia che si autoavvera |
| Pygmalion of Tyre | Pygmalion |
| pygmy | pigmeo |
| Pygmy Brocket | Mazama nana |
| Pygmy Cormorant | Phalacrocorax pygmeus |
| Pygmy Hog | Sus salvanius |
| Pygmy Killer Whale | Feresa attenuata |
| Pygmy Mammoth | Mammuthus exilis |
| Pygmy Mouse Lemur | Microcebus myoxinus |
| Pygmy Right Whale | Caperea marginata |
| Pygmy Three-toed Sloth | Bradypus pygmaeus |
| Pygoscelis | Pygoscelis |
| Pyhra | Pyhra |
| Pyhtää | Pyhtää |
| Pyinmana | Naypyidaw |
| pyjamas | pigiama |
| Pykrete | Pykrete |
| pylon | pilone |
| pylorus | piloro |
| Pylos | Navarino |
| Pyonghwa Motors | Pyonghwa Motors |
| Pyongtaek | Pyongtaek |
| Pyongyang | Pyongyang |
| pyorrhea | piorrea |
| pyorrhoea | piorrea |
| Pyotr Bagration | Pëtr Ivanovič Bagration |
| Pyotr Chaadaev | Pëtr Jakovlevič Čaadajev |
| Pyotr Grigorenko | Petro Grigorovič Grigorenko |
| Pyotr Kafarov | Palladio |
| Pyotr Kapitsa | Pëtr Kapica |
| pyralene | piralene |
| Pyralidae | Pyralidae |
| pyramid | piramide |
| Pyramid Head | Pyramid Head |
| Pyramid of Cestius | Piramide Cestia |
| Pyramid Texts | Testi delle piramidi |
| pyramidal | piramidale |
| Pyramidal orchid | Anacamptis pyramidalis |
| Pyramiden | Pyramiden |
| Pyramids of Giza | Piramide di Cheope |
| Pyramids of Güímar | Piramidi di Guimar |
| Pyramus and Thisbe | Piramo |
| Pyran | Pirano |
| Pyrargyrite | Pirargirite |
| Pyrazole | Pirazolo |
| Pyrbaum | Pyrbaum |
| pyre | rogo |
| Pyrenean Chamois | Rupicapra pyrenaica |
| Pyrenean Ibex | Capra pyrenaica pyrenaica |
| Pyrenean Mountain Dog | Cane da Montagna dei Pirenei |
| Pyrenean Shepherd | Pastore dei Pirenei |
| Pyrenees | Pirenei |
| Pyrethrin | Piretrina |
| pyretic | febbricitante |
