Rhestr prifddinasoedd cenedlaethol.
| Gwlad | Prifddinas |
|---|
| Arfordir Ifori | Yamoussoukro (swyddogol)
Abidjan (gweinyddol) |
| Affganistan | Kabul |
| Aifft, Yr | Cairo |
| Alban, Yr | Caeredin |
| Albania | Tiranë |
| Algeria | Algiers |
| Almaen, Yr | Berlin |
| Andorra | Andorra la Vella |
| Angola | Luanda |
| Antigwa a Barbiwda | Saint John's |
| Ariannin | Buenos Aires |
| Armenia | Yerevan |
| Aserbaijan | Baku |
| Awstralia | Canberra |
| Awstria | Wien |
| Bahamas | Nassau |
| Bahrein | Manama |
| Bangladesh | Dacca |
| Barbados | Bridgetown |
| Belîs | Belmopan |
| Belarws | Minsk |
| Benin | Porto-Novo |
| Bhwtan | Thimphu |
| Bolifia | La Paz (gweinyddol)
Sucre (swyddogol) |
| Bosnia-Hertsegofina | Sarajevo |
| Botswana | Gaborone |
| Brasil | Brasília |
| Brwnei | Bandar Seri Begawan |
| Bwrcina Ffaso | Ouagadougou |
| Bwrwndi | Bujumbura |
| Bwlgaria | Sofia |
| Cabo Verde | Praia |
| Cambodia | Phnom Penh |
| Camerŵn | Yaoundé |
| Canada | Ottawa |
| Casachstan | Astana |
| Cenia | Nairobi |
| Ciribati | De Tarawa |
| Cirgistan | Bishkek |
| Colombia | Bogotá |
| Comores | Moroni |
| Congo | Brazzaville |
| Costa Rica | San José |
| Coweit | Dinas Ciwait |
| Croatia | Zagreb |
| Ciwba | La Habana |
| Cymru | Caerdydd |
| Cyprus | Nicosia |
| De Affrica | Pretoria (gweinyddol)
Tref y Penrhyn (deddfwriaethol)
Bloemfontein (barnwrol) |
| De Corea | Seoul |
| De Swdan | Juba |
| Deyrnas Unedig, Y | Llundain |
| Denmarc | København |
| Dominica | Roseau |
| Dwyrain Timor | Dili |
| Ecwador | Quito |
| Eidal, Yr | Rhufain |
| El Salfador | San Salvador |
| Emiradau Arabaidd Unedig | Abu Dhabi |
| Eritrea | Asmara |
| Estonia | Tallinn |
| Ethiopia | Addis Ababa |
| Fanwatw | Port Vila |
| Fatican, Y | dim |
| Feneswela | Caracas |
| Fietnam | Hanoi |
| Ffiji | Suva |
| Ffindir, Y | Helsinki |
| Ffrainc | Paris |
| Gabon | Libreville |
| Gaiana | Georgetown |
| Gambia | Banjul |
| Georgia | Tbilisi |
| Ghana | Accra |
| Gini Bisaw | Bissau |
| Gini Gyhydeddol | Malabo |
| Gogledd Corea | Pyongyang |
| Grenada | St. George's |
| Guinée | Conakry |
| Gwatemala | Dinas Gwatemala |
| Gweriniaeth Canolbarth Affrica | Bangui |
| Gweriniaeth Dominica | Santo Domingo |
| Gweriniaeth Ddemocrataidd Congo | Kinshasa |
| Gweriniaeth Iwerddon | Dulyn |
| Gweriniaeth Tsiec | Prag |
| Gwlad Belg | Brwsel |
| Gwlad Groeg | Athen |
| Gwlad Iorddonen | Amman |
| Gwlad Pwyl | Warsaw |
| Gwlad Swasi | Mbabane |
| Gwlad Tai | Bangkok |
| Gwlad yr Iâ | Reykjavík |
| Haiti | Port-au-Prince |
| Hondwras | Tegucigalpa |
| Hwngari | Budapest |
| Iemen | Sana'a |
| India | Delhi Newydd |
| Indonesia | Jakarta |
| Irac | Baghdad |
| Iran | Tehran |
| Iseldiroedd, Yr | Amsterdam |
| Israel | Jerwsalem |
| Jamaica | Kingston |
| Japan | Tokyo |
| Jibwti | Dinas Jibwti |
| Laos | Vientiane |
| Latfia | Riga |
| Lesotho | Maseru |
| Libanus | Beirut |
| Liberia | Monrovia |
| Libia | Tripoli |
| Liechtenstein | Vaduz |
| Lithwania | Vilnius |
| Lwcsembwrg | Lwcsembwrg |
| Lloegr | Llundain |
| Macedonia | Skopje |
| Madagasgar | Antananarivo |
| Malawi | Lilongwe |
| Maldives | Malé |
| Maleisia | Kuala Lumpur |
| Mali | Bamako |
| Malta | Valletta |
| Mawrisiws | Port Louis |
| Mauritania | Nouakchott |
| Mecsico | Dinas Mexico |
| Moldofa | Chişinău |
| Monaco | Monaco |
| Mongolia | Ulan Bator |
| Montenegro | Podgorica |
| Moroco | Rabat |
| Mosambic | Maputo |
| Myanmar | Naypyidaw |
| Namibia | Windhoek |
| Nawrw | Yaren (gweinyddol) |
| Nepal | Kathmandu |
| Nicaragwa | Managua |
| Niger | Niamey |
| Nigeria | Abuja |
| Norwy | Oslo |
| Oman | Muscat |
| Pacistan | Islamabad |
| Palaw | Melekeok |
| Panama | Panama |
| Papua Gini Newydd | Port Moresby |
| Paragwâi | Asunción |
| Periw | Lima |
| Portiwgal | Lisbon |
| Philipinau, Y | Manila |
| Qatar | Doha |
| Rwanda | Kigali |
| Rwmania | Bwcarést |
| Rwsia | Moscfa |
| Sambia | Lusaka |
| Samoa | Apia |
| San Marino | San Marino |
| Sant Kitts-Nevis | Basseterre |
| Sant Lwsia | Castries |
| Sant Vincent a'r Grenadines | Kingstown |
| São Tomé a Príncipe | São Tomé |
| Sawdi Arabia | Riyadh |
| Sbaen | Madrid |
| Seland Newydd | Wellington |
| Senegal | Dakar |
| Serbia | Beograd |
| Seychelles | Victoria |
| Sierra Leone | Freetown |
| Simbabwe | Harare |
| Singapôr | Singapôr |
| Slofacia | Bratislava |
| Slofenia | Ljubljana |
| Somalia | Mogadishu |
| Sri Lanca | Sri Jayawardenapura-Kotte (swyddogol)
Colombo (masnachol) |
| Swdan | Khartoum |
| Sweden | Stockholm |
| Swistir, Y | Bern |
| Swrinam | Paramaribo |
| Syria | Damascus |
| Taiwan | Taipei |
| Tajicistan | Dushanbe |
| Taleithiau Ffederal Micronesia | Palikir |
| Tansanïa | Dodoma (swyddogol)
Dar es Salaam (gweinyddol) |
| Tiwnisia | Tunis |
| Togo | Lomé |
| Tonga | Nuku'alofa |
| Trinidad a Tobago | Port of Spain |
| Tsiad | N'Djamena |
| Tsieina | Beijing |
| Tsile | Santiago de Chile |
| Twfalw | Funafuti |
| Twrci | Ankara |
| Tyrcmenistan | Ashgabat |
| Unol Daleithiau America | Washington, D.C. |
| Wcráin | Kiev |
| Wganda | Kampala |
| Wrwgwái | Montevideo |
| Wsbecistan | Tashkent |
| Ynysoedd Marshall | Majuro |
| Ynysoedd Solomon | Honiara |
