| Proteasome | Proteasom |
| protected area | zavarovano območje |
| Protected areas of Croatia | Seznam narodnih parkov Hrvaške |
| Protected areas of Slovenia | Zavarovana območja Slovenije |
| protected marine zone | zavarovano morsko območje |
| protected species | zavarovana vrsta |
| protection from neighbours | zaščita pred sosedi |
| protection of animals | varstvo živali |
| protection of birds | varovanje ptic |
| protection of species | varovanje vrst |
| protection system | sistem varovanja |
| protective measure | zaščitni ukrep |
| Protectorate | Zemlja |
| protein | beljakovina |
| protein product | proteinski izdelek |
| Proterozoic | Proterozoik |
| Proterozoic era | Proterozoik |
| Protestant Reformation | Reformacija |
| Protestantism | Protestantizem |
| Proteus | Človeška ribica |
| Protist | Protisti |
| Proto-Indo-Europeans | Indoevropski jeziki |
| protocol | protokol |
| Protogalaxy | Protogalaksija |
| Proton | Proton |
| Proton rocket | Proton |
| Protozoa | Praživali |
| protozoan | praživali |
| provender | živinska krma |
| province | pokrajina |
| Province of Ascoli Piceno | Ascoli Piceno |
| Province of Bari | Bari |
| Province of Bolzano-Bozen | Južna Tirolska |
| Province of Brescia | Brescia |
| Province of Canada | Kanada |
| Province of Catania | Catania |
| Province of Florence | Firence |
| Province of Genoa | Genova |
| Province of Gorizia | Goriška pokrajina |
| Province of Hanover | Hannover |
| Province of Imperia | Imperij |
| Province of Lodi | Lombardija |
| Province of Messina | Messina |
| Province of Milan | Milano |
| Province of Naples | Neapelj |
| Province of Novara | Novara |
| Province of Pavia | Pavia |
| Province of Perugia | Perugia Calcio |
| Province of Pescara | Pescara Circuit |
| Province of Prussia | Prusija |
| Province of Rimini | Rimini |
| Province of Rome | Rim |
| Province of Schleswig-Holstein | Schleswig-Holstein |
| Province of Silesia | Šlezija |
| Province of Syracuse | Sirakuze |
| Province of Taranto | Taranto |
| Province of Trieste | Tržaška pokrajina |
| Province of Turin | Torino |
| Province of Venice | Benetke |
| Province of Verona | Verona |
| Province of Vicenza | Vicenza |
| Provinces of Ecuador | Upravna delitev Ekvadorja |
| Provinces of France | Seznam francoskih provinc |
| Provinces of Spain | Španska avtonomna pokrajina |
| Provinces of Turkey | Province v Turčiji |
| Provincial reconstruction team | ISAF |
| Provisional designation in astronomy | Začasno označevanje nebesnih teles |
| Provisional Irish Republican Army | Irska republikanska armada |
| Proxy pattern | Anonymizer |
