Atlantic Ocean
Orkney Islands United Kingdom
Osaka-Kobe [US Consulate General] Japan
Oslo [US Embassy] Norway
Otranto, Strait of Atlantic Ocean
Ottawa [US Embassy] Canada
Ouagadougou [US Embassy] Burkina
Outer Mongolia Mongolia

Pagan Northern Mariana Islands
Palau Pacific Islands, Trust Territory of the
Palawan Philippines
Palermo [US Consulate General] Italy
Palk Strait Indian Ocean
Palma de Mallorca Spain
[US Consular Agency]
Pamirs China; Tajikistan
Panama [US Embassy] Panama
Panama Canal Panama
Panama, Gulf of Pacific Ocean
Paramaribo [US Embassy] Suriname
Parece Vela Japan
Paris [US Embassy, US Mission to France
the Organization for Economic
Cooperation and Development
(OECD), US Observer Mission at
the UN Educational, Scientific,
and Cultural Organization
(UNESCO)]
Pascua, Isla de (Easter Island) Chile
Passion, Ile de la Clipperton Island
Pashtunistan Afghanistan; Pakistan
Peking (Beijing) China
Pemba Island Tanzania
Pentland Firth Atlantic Ocean
Perim Yemen
Perouse Strait, La Pacific Ocean
Persian Gulf Indian Ocean
Perth [US Consulate] Australia
Pescadores Taiwan
Peshawar [US Consulate] Pakistan
Peter I Island Antarctica
Philip Island Norfolk Island
Philippine Sea Pacific Ocean
Phoenix Islands Kiribati
Pines, Isle of Cuba
(Isla de la Juventud)
Piura [US Consular Agency] Peru
Pleasant Island Nauru
Ponape (Pohnpei) Micronesia
Ponta Delgada [US Consulate] Portugal
Port-au-Prince [US Embassy] Haiti
Port Louis [US Embassy] Mauritius
Port Moresby [US Embassy] Papua New Guinea
Porto Alegre [US Consulate] Brazil
Port-of-Spain [US Embassy] Trinidad and Tobago
Port Said [US Consular Agency] Egypt
Portuguese Guinea Guinea-Bissau
Portuguese Timor (East Timor) Indone