word | | Country name |
| Palau | Palau | conventional long form: Republic of Palau conventional short form: Palau local long form: Beluu er a Belau local short form: Belau former: Trust Territory of the Pacific Islands, Palau District |
| Palmyra | United States Pacific Island Wildlife Refuges | conventional long form: none conventional short form: Baker Island; Howland Island; Jarvis Island; Johnston Atoll; Kingman Reef; Midway Islands; Palmyra Atoll |
| Panama | Panama | conventional long form: Republic of Panama conventional short form: Panama local long form: Republica de Panama local short form: Panama |
| Papiamentu | Curacao | Dutch long form: Land Curacao Dutch short form: Curacao Papiamentu long form: Pais Korsou Papiamentu short form: Korsou former: Netherlands Antilles; Curacao and Dependencies |
| Papua | Papua New Guinea | conventional long form: Independent State of Papua New Guinea conventional short form: Papua New Guinea local short form: Papuaniugini former: Territory of Papua and New Guinea abbreviation: PNG |
| Papuaniugini | Papua New Guinea | conventional long form: Independent State of Papua New Guinea conventional short form: Papua New Guinea local short form: Papuaniugini former: Territory of Papua and New Guinea abbreviation: PNG |
| Paracel | Paracel Islands | conventional long form: none conventional short form: Paracel Islands |
| Paraguay | Paraguay | conventional long form: Republic of Paraguay conventional short form: Paraguay local long form: Republica del Paraguay local short form: Paraguay |
| Passion | Clipperton Island | conventional long form: none conventional short form: Clipperton Island local long form: none local short form: Ile Clipperton former: sometimes called Ile de la Passion |
| Pathet | Laos | conventional long form: Lao People's Democratic Republic conventional short form: Laos local long form: Sathalanalat Paxathipatai Paxaxon Lao local short form: Pathet Lao (unofficial) |
| Paxathipatai | Laos | conventional long form: Lao People's Democratic Republic conventional short form: Laos local long form: Sathalanalat Paxathipatai Paxaxon Lao local short form: Pathet Lao (unofficial) |