Rhestr arweinwyr cenedlaethol

Oddi wrth Wicipedia, y gwyddoniadur rhydd.

Gwlad Pennaeth Gwlad Pennaeth Llywodraeth
Afghanistan Hamid Karzai
Yr Aifft Hosni Mubarak Ahmed Nazif
Albania Bamir Topi Sali Berisha
Yr Almaen Horst Köhler Angela Merkel
Algeria Abdelaziz Bouteflika Abdelaziz Belkhadem
Andorra Joan Enric Vives Sicília
(represented by Nemesi Marqués Oste)
a Nicolas Sarkozy
(represented by Philippe Massoni)
Albert Pintat
Angola José Eduardo dos Santos Fernando da Piedade Dias dos Santos
Antigua a Barbuda Elisabeth II,
represented by Syr James Carlisle
Baldwin Spencer
Yr Ariannin Néstor Kirchner
Armenia Robert Kocharyan Serzh Sargsyan
Awstralia Elisabeth II,
represented by Michael Jeffery
John Howard
Awstria Heinz Fischer Alfred Gusenbauer
Azerbaijan Ilham Aliyev Artur Rasizade
Bahamas Elisabeth II,
represented by Arthur Dion Hanna
Hubert Ingraham
Bahrain Hamad ibn Isa Al Khalifah Khalifah ibn Sulman Al Khalifah
Bangladesh Iajuddin Ahmed Fakhruddin Ahmed
Barbados Elisabeth II,
represented by Syr Clifford Husbands
Owen Arthur
Belarus Alexander Lukashenko Sergey Sidorsky
Belize Elisabeth II,
represented by Syr Colville Young
Said Musa
Benin Yayi Boni
Bhutan Jigme Khesar Namgyal Wangchuck Khandu Wangchuk
Bolivia Evo Morales
Bosna a Hercegovina Nebojša Radmanović
Haris Silajdžić
Željko Komšić
Nikola Špirić
Botswana Festus Mogae
Brasil Luiz Inácio Lula da Silva
Brunei Hassanal Bolkiah
Burkina Faso Blaise Compaoré Paramanga Ernest Yonli
Bwlgaria Georgi Purvanov Sergey Stanishev
Bwrwndi Pierre Nkurunziza
Cambodia Norodom Sihamoni Hun Sen
Camerŵn Paul Biya Ephraïm Inoni
Cabo Verde Pedro Pires José Maria Neves
Canada Elisabeth II,
represented by Michaëlle Jean
Stephen Harper
Chile Michelle Bachelet
Colombia Álvaro Uribe
Comoros Ahmed Abdallah Mohamed Sambi
Costa Rica Óscar Arias
Côte d'Ivoire Laurent Gbagbo Guillaume Soro
Croatia Stjepan Mesić Ivo Sanader
Cuba Fidel Castro
Raúl Castro (acting)
Cyprus Tassos Papadopoulos
De Affrica Thabo Mbeki
De Corea Roh Moo-hyun Han Duck-soo
Denmarc Margrethe II Anders Fogh Rasmussen
Y Deyrnas Unedig Elisabeth II Gordon Brown
Djibouti Ismail Omar Guelleh Dileita Mohamed Dileita
Dominica Nicholas Liverpool Roosevelt Skerrit
Dwyrain Timor José Ramos Horta Estanislau da Silva
Ecwador Rafael Correa
Yr Eidal Giorgio Napolitano Romano Prodi
El Salvador Antonio Saca
Emiradau Arabaidd Unedig Khalifa bin Zayed Al Nahayan Mohammed bin Rashid Al Maktoum
Estonia Toomas Hendrik Ilves Andrus Ansip
Eritrea Isaias Afewerki
Ethiopia Girma Wolde-Giorgis Meles Zenawi
Y Fatican Pab Bened XVI Tarcisio Bertone
Giovanni Lajolo
Fiet Nam Nguyễn Minh Triết Nguyễn Tấn Dũng
Fiji Josefa Iloilo Frank Bainimarama
Ffrainc Nicolas Sarkozy François Fillon
Y Ffindir Tarja Halonen Matti Vanhanen
Gabon Omar Bongo Jean Eyeghe Ndong
Y Gambia Yahya Jammeh
Georgia Mikhail Saakashvili Zurab Noghaideli
Ghana John Kufuor
Gogledd Corea Kim Il-sung (marw)
Kim Jong-il (highest administrative authority)
Kim Yong-nam ("Head of State for
Foreign Affairs")
Kim Yong-il
Grenada Elisabeth II,
represented by Syr Daniel Williams
Keith Mitchell
Guatemala Óscar Berger
Guinée Lansana Conté Lansana Kouyaté
Guiné-Bissau João Bernardo Vieira Martinho Ndafa Kabi
Guinée Gyhydeddol Teodoro Obiang Nguema Mbasogo Ricardo Mangue Obama Nfubea
Guyana Bharrat Jagdeo Sam Hinds
Gweriniaeth Canolbarth Affrica François Bozizé Élie Doté
Gweriniaeth y Congo Denis Sassou-Nguesso
Gweriniaeth Dominica Leonel Fernández
Gweriniaeth Ddemocrataidd Congo Joseph Kabila Antoine Gizenga
Gweriniaeth Iwerddon Mary McAleese Bertie Ahern
Gweriniaeth Macedonia Branko Crvenkovski Nikola Gruevski
Gweriniaeth Pobl China Hu Jintao Wen Jiabao
Gweriniaeth Tsiec Václav Klaus Mirek Topolánek
Gweriniaeth Tsieina Chen Shui-bian Su Tseng-chang
Gwlad Belg Albert II Guy Verhofstadt
Gwlad Iorddonen Abdullah II, brenin Gwlad Iorddonen Marouf al-Bakhit
Gwlad Pwyl Lech Kaczyński Jarosław Kaczyński
Gwlad Swazi Mswati III, brenin Gwlad Swazi Themba Dlamini
Gwlad Thai Bhumibol Adulyadej Sonthi Boonyaratglin
Surayud Chulanont
Gwlad yr Iâ Ólafur Ragnar Grímsson Geir Haarde
Gwlad Groeg Karolos Papoulias Kostas Karamanlis
Haiti René Préval Jacques-Édouard Alexis
Honduras Manuel Zelaya
Hwngari László Sólyom Ferenc Gyurcsány
India Pratibha Patil Manmohan Singh
Indonesia Susilo Bambang Yudhoyono
Irac Jalal Talabani Nouri al-Maliki
Iran Ali Khamenei (Rahbar - "arweinydd"); Mahmoud Ahmadinejad (arlywydd)
Yr Iseldiroedd Beatrix Jan Peter Balkenende
Israel Shimon Peres Ehud Olmert
Jamaica Elisabeth II,
represented by Kenneth Hall
Portia Simpson-Miller
Japan Akihito Shinzo Abe
Kazakstan Nursultan Nazarbayev Karim Masimov
Kenya Mwai Kibaki
Kiribati Anote Tong
Kuwait Sabah Al-Ahmad Al-Jaber Al-Sabah Nasser Al-Mohammed Al-Ahmed Al-Sabah
Kyrgyzstan Kurmanbek Bakiyev Almazbek Atambayev
Laos Choummaly Sayasone Bouasone Bouphavanh
Latfia Valdis Zatlers Aigars Kalvītis
Lesotho Letsie III, brenin Lesotho Pakalitha Mosisili
Libanus Émile Lahoud Fouad Siniora
Liberia Ellen Johnson-Sirleaf
Libya Zentani Muhammad az-Zentani (de jure)
Muammar al-Gaddafi (de facto)
Shukri Ghanem
Liechtenstein Hans-Adam II Otmar Hasler
Lithuania Valdas Adamkus Gediminas Kirkilas
Lwcsembwrg Henri Jean-Claude Juncker
Madagascar Marc Ravalomanana Charles Rabemananjara
Malawi Bingu wa Mutharika
Malaysia Mizan Zainal Abidin Abdullah Ahmad Badawi
Maldives Maumoon Abdul Gayoom
Mali Amadou Toumani Touré Ousmane Issoufi Maïga
Malta Eddie Fenech Adami Lawrence Gonzi
Mauritania Ely Ould Mohamed Vall Sidi Mohamed Ould Boubacar
Mauritius Syr Anerood Jugnauth Navin Ramgoolam
México Felipe Calderón
Moldofa Vladimir Voronin Vasile Tarlev
Monaco Albert II Jean-Paul Proust
Mongolia Nambaryn Enkhbayar Miyeegombyn Enkhbold
Montenegro Filip Vujanović Željko Šturanović
Moroco Mohammed VI Driss Jettou
Mosambic Armando Guebuza Luisa Diogo
Myanmar Than Shwe Soe Win
Namibia Hifikepunye Pohamba Nahas Angula
Nauru Ludwig Scotty
Nepal Gyanendra Girija Prasad Koirala
Nicaragua Daniel Ortega
Niger Tandja Mamadou Hama Amadou
Nigeria Umaru Yar'Adua
Norwy Harald V Jens Stoltenberg
Oman Qaboos bin Sa'id Al 'Bu Sa'id
Pakistan Pervez Musharraf Shaukat Aziz
Palau Tommy Remengesau
Panamá Martín Torrijos
Papua Guinea Newydd Elisabeth II,
represented by Syr Paulias Matane
Syr Michael Somare
Paragwai Nicanor Duarte
Periw Alan García Jorge Del Castillo
Pilipinas Gloria Macapagal-Arroyo
Portiwgal Aníbal Cavaco Silva José Sócrates
Qatar Hamad bin Khalifa Hamad ibn Jaber al Thani
Rwmania Traian Băsescu Călin Popescu-Tăriceanu
Rwanda Paul Kagame Bernard Makuza
Rwsia Vladimir Putin Mikhail Fradkov (dros dro)
St. Kitts a Nevis Elisabeth II,
wedi'i chynrychioli gan Syr Cuthbert Sebastian
Denzil Douglas
St. Lucia Elisabeth II,
wedi'i chynrychioli gan Dame Pearlette Louisy
Syr John Compton
St. Vincent a'r Grenadines Elisabeth II,
wedi'i chynrychioli gan Syr Frederick Ballantyne
Ralph Gonsalves
Samoa Tupua Tamasese Tupuola Tufuga Efi Tuila'epa Sailele Malielegaoi
San Marino Alessandro Mancini a Alessandro Rossi Fiorenzo Stolfi
São Tomé a Príncipe Fradique de Menezes Tomé Vera Cruz
Saudi Arabia Abdullah
Sbaen Juan Carlos José Luis Rodríguez Zapatero
Seland Newydd Elisabeth II,
wedi'i chynrychioli gan Anand Satyanand
Helen Clark
Sénégal Abdoulaye Wade Macky Sall
Serbia Boris Tadić Vojislav Koštunica
Seychelles James Michel
Sierra Leone Ahmad Tejan Kabbah
Singapore Sellapan Ramanathan Lee Hsien Loong
Slofacia Ivan Gašparovič Robert Fico
Slofenia Janez Drnovšek Janez Janša
Somalia Abdullahi Yusuf Ahmed Ali Mohammed Ghedi
Sri Lanka Mahinda Rajapaksa Ratnasiri Wickremanayake
Suriname Ronald Venetiaan Jules Ajodhia
Sweden Siarl XVI Göran Persson
Y Swistir Moritz Leuenberger, Pascal Couchepin (Is-Arlywydd), Samuel Schmid, Micheline Calmy-Rey (Arlywydd), Christoph Blocher, Hans-Rudolf Merz, Doris Leuthard
Swdan Omar al-Bashir
Syria Bashar al-Assad Mohammed Naji al-Otari
Tajikistan Emomalii Rahmon Oqil Oqilov
Taleithiau Ffederal Micronesia Joseph Urusemal
Tanzania Jakaya Kikwete Edward Lowassa
Tchad Idriss Déby Delwa Kassiré Koumakoye
Togo Faure Gnassingbé Yawovi Agboyibo
Tonga George Tupou V Feleti Sevele
Trinidad a Tobago George Maxwell Richards Patrick Manning
Tunisia Zine El Abidine Ben Ali Mohamed Ghannouchi
Turkmenistan Gurbanguly Berdimuhammedow
Twfalw Elisabeth II,
represented by Filoimea Telito
Apisai Ielemia
Twrci Ahmet Necdet Sezer Recep Tayyip Erdoğan
Yr Unol Daleithiau George W. Bush
Uruguay Tabaré Vázquez
Uzbekistan Islom Karimov Shavkat Mirziyoyev
Vanuatu Kalkot Mataskelekele Ham Lini
Venezuela Hugo Chávez
Wcráin Viktor Yushchenko Viktor Yanukovych
Wganda Yoweri Museveni Apolo Nsibambi
Yemen Ali Abdallah Saleh Abdul Qadir Bajamal
Ynysoedd Marshall Kessai Note
Ynysoedd Solomon Elisabeth II,
represented by Syr Nathaniel Waena
Manasseh Sogavare
Zambia Levy Mwanawasa
Zimbabwe Robert Mugabe