| Portal:Box-footer | PortaOne | PortaOne, Inc. |
| Porter Airlines | Porteus | Portfolio of Ahmad Jamal |
| Porthos (автовиробник) | Portishead | Portishead (альбом) |
| Portland Natural Gas Transmission | Portland Streetcar | Portland Trail Blazers |
| Portmanteau | Portmone.com | Portrait Of A Legend 1951-1964 |
| Portrait of a Legend 1951-1964 | Portrait of a Legend 1951–1964 | Portrait of an American Family |
| Portrait of an American Family Tour | Portrait of Cannonball | Portsmouth |
| Portsmouth Dockyard | Portugal | Portugal dos Pequenitos |
| Portugal Open | Portugal. The Man | Portugal: diccionario historico, chorographico, heraldico, biographico, bibliographico, numismatico e artistico |
| Portugaliae monumenta historica | Portugaliae Monumenta Historica | Portugaliæ Monumenta Historica |
| Portugália | Português | Portulaca |
| Portulaca oleracea | Portulacaceae | Portunus menoides |
| Porzana parva | Porzana porzana | Porzana pusilla |
| POS-термінал | POSCO | POSCO DAEWOO |
| Positif (альбом) | POSIX | POSIX Threads |
| Poslije svega | POSM | POSS-115 (буксир) |
| Possessed | Possessed (гурт) | POST |
| POST (HTTP) | Post Apocalyptic Mayhem | Post factum |
| Post hoc ergo propter hoc | Post Luxembourg | Post Malone |
| Post Office Protocol | Post quel | Post scriptum |
| Post-Поступ | POST-карта | Posta Shqiptare |
| Postal | Postal 2 | Postcrossing |
| Poste italiane | Poste San Marino | Posten (Швеція) |
| Posten Åland | Posten Norge | Postfix |
| Postgaardi | PostgreSQL | PostgreSQL Studio |
| Posthuman Records | Posti Group | Postimees |
| Postman | Postman (музикант) | Postmen |
| Postmen DA | Postmodern | Postmodern Jukebox |
| Postmodern Postproduction | Postmoderne | POSTN |
| PostNL | PostNord Danmark | PostPlay |
| POSTQUEL | PostQuel | Postquel |
| PostScript | Postscript | PostScriptum |
| Postsense | Pot of Gold | POT1 |
| Potamarius | Potamobius actacus | Potamogeton |
| Potamogeton alpinus | Potamogeton berchtoldii | Potamogeton crispus |
| Potamogeton friesii | Potamogeton gramineus | Potamogeton groenlandicus |
| Potamogeton natans | Potamogeton obtusifolius | Potamogeton pectinatus |
| Potamogeton perfoliatus | Potamogeton praelongus | Potamogeton pusillus |
| Potamogeton rutilus | Potamogetonaceae | Potamon |
| Potamon ibericum | Potamon tauricum | Potamopyrgus antipodarum |
| Potamornis | Potamornis skutchi | Potamotrygonidae |
| Potash Corporation of Saskatchewan | Potash Corporation of Saskatchewan Inc. | Potassium Nitrate |
| POTEA | POTEB | POTEB2 |
| POTEB3 | POTEC | POTED |
| POTEE | POTEF | POTEG |
| POTEH | POTEI | POTEJ |
| POTEM | Potential | Potentilla |
| Potentilla alba | Potentilla anserina | Potentilla arenaria |
| Potentilla arenosa | Potentilla argentea | Potentilla astracanica |
| Potentilla aurea | Potentilla canescens | Potentilla caucasica |
| Potentilla collina | Potentilla crantzii | Potentilla crassa |
| Potentilla depressa | Potentilla erecta | Potentilla fruticosa |
| Potentilla geoides | Potentilla glaucophylla | Potentilla goldbachii |
| Potentilla heptaphylla | Potentilla humifusa | Potentilla hyparctica |
| Potentilla indica | Potentilla insularis | Potentilla intermedia |
| Potentilla jailae | Potentilla longipes | Potentilla lyngei |
| Potentilla micrantha | Potentilla mollicrinis | Potentilla nivea |
| Potentilla norvegica | Potentilla obscura | Potentilla palustris |
| Potentilla pedersenii | Potentilla pulchella | Potentilla rubella |
| Potentilla stipularis | Potentilla subvahliana | Potentilla taurica |
| Potentilla thuringiaca | Potentilla vahliana | Potez |
| POTF | Potirion Monody Ensemble | Potoroidae |
| Potorous | Potorous platyops | Potos |
| Potos flavus | Potsdam-Babelsberg | Pottermore |
| Potyviridae | POU1F1 | POU2AF1 |
| POU2F1 | POU2F2 | POU2F3 |
| POU3F1 | POU3F2 | POU3F3 |
| POU3F4 | POU4F1 | POU4F2 |
| POU4F3 | POU5F1 | POU5F1B |
| POU5F2 | POU6F1 | POU6F2 |
| PouchDB | Poughkeepsie (city), New York | Poughkeepsie, New York |
| Poul-Henning Kamp | Pound for pound | Pound Syndrome |
| Poupée de cire, poupée de son | Pour It Up | Pour le Mérite |
| Pour le mérite (Прусія) | Pour Out a Little Liquor | Pour toi Arménie |
| Pouteria lucuma | POV-Ray | Powder River (вугільний басейн) |
| Powelliphanta | Power & Passion | Power 775 |
| Power chord | Power Macintosh | Power metal |
| Power noise | Power of the Dollar | Power over Ethernet |
| Power Plant | Power Plant (альбом) | Power Point |
| Power Pro Wrestling | Power Rangers | Power Supply |
| Power Supply (album) | Power Windows | Power, Corruption & Lies |
| Power-to-Gas | POWER4 | POWER5 |
| Powerade | Powerage | PowerBuilder |
| Powerbuilder | PowerColor | PowerDesigner |
| PowerDirector | PowerDVD | Powerless |
| Powerless (Say What You Want) | PowerNow | PowerNow! |
| PowerPC | Powerpc | PowerPC G4 |
| PowerPoint | PowerShell | Powershell |
| Powerslave | Powerwall | Powerwolf |
| Powszechna Kasa Oszczędności Bank Polski | Powszechny Zakład Ubezpieczeń | Poxviridae |
| Poziv na ples | Poznań | PP2D1 |
| PPA1 | PPA2 | PPAN |
| PPAN-P2RY11 | PPAP | PPARA |
| PPARD | PPARG | PPARGC1A |
| PPARGC1B | PPAT | Ppb |
| PPBP | PPCDC | PPCoin |
| PPCS | PPDPF | PPDPFL |
| PPEF1 | PPEF2 | PPF (компанія) |
| PPFIA1 | PPFIA2 | PPFIA3 |
| PPFIA4 | PPFIBP1 | PPFIBP2 |
