Rhestr arweinwyr gwladwriaethau cyfoes

Dyma restr o bennau gwladwriaethau cyfoes.

Gwladwriaeth	Pennaeth gwladwriaeth	Pennaeth llywodraeth
Affganistan	Hamid Karzai
Angola	João Lourenço	Paulo Kassoma
Yr Aifft	Mohamed Hussein Tantawi	Kamal Ganzouri
Albania	Bamir Topi	Sali Berisha
Yr Almaen	Joachim Gauck	Angela Merkel
Algeria	Abdelaziz Bouteflika	Ahmed Ouyahia
Andorra	Joan Enric Vives Sicília, wedi'i gynrychioli gan Nemesi Marqués Oste, a Emmanuel Macron, wedi'i gynrychioli gan Christian Frémont	Antoni Martí
Antigwa a Barbiwda	Elisabeth II, wedi'i chynrychioli gan Louise Lake-Tack	Baldwin Spencer
Arfordir Ifori	Alassane Ouattara	Jeannot Ahoussou-Kouadio
Yr Ariannin	Christina Fernández de Kirchner
Armenia	Serzh Sargsyan	Tigran Sargsyan
Aserbaijan	Ilham Aliyev	Artur Rasizade
Awstralia	Elisabeth II, wedi'i chynrychioli gan Quentin Bryce	Kevin Rudd
Awstria	Heinz Fischer	Werner Faymann
Bahamas	Elisabeth II, wedi'i chynrychioli gan Arthur Foulkes	Hubert Ingraham
Bahrain	Hamad ibn Isa Al Khalifah	Khalifah ibn Sulman Al Khalifah
Bangladesh	Zillur Rahman	Sheikh Hasina Wazed
Barbados	Elisabeth II, wedi'i chynrychioli gan Elliot Belgrave (dros dro)	Freundel Stuart
Belarws	Alexander Lukashenko	Mikhail Myasnikovich
Belize	Elisabeth II, wedi'i chynrychioli gan Froyla Tzalam	Dean Barrow
Benin	Yayi Boni
Bhutan	Jigme Khesar Namgyal Wangchuck	Jigme Thinley
Bolifia	Evo Morales
Bosnia a Hercegovina	Željko Komšić Bakir Izetbegović Nebojša Radmanović	Vjekoslav Bevanda
Botswana	Ian Khama
Brasil	Jair Bolsonaro
Brunei	Hassanal Bolkiah
Bwlgaria	Rosen Plevneliev	Boyko Borisov
Bwrcina Ffaso	Blaise Compaoré	Luc-Adolphe Tiao
Bwrwndi	Pierre Nkurunziza
Cambodia	Norodom Sihamoni	Hun Sen
Camerŵn	Paul Biya	Philémon Yang
Cabo Verde	Jorge Carlos Fonseca	José Maria Neves
Canada	Elisabeth II, wedi'i chynrychioli gan David Lloyd Johnston	Stephen Harper
Casachstan	Kassym-Jomart Tokayev	Askar Mamin
Cenia	Mwai Kibaki	Raila Odinga
Cirgistan	Almazbek Atambayev	Omurbek Babanov
Ciribati	Anote Tong
Colombia	Juan Manuel Santos
Comoros	Ikililou Dhoinine
Costa Rica	Laura Chinchilla
Coweit	Sabah Al-Ahmad Al-Jaber Al-Sabah	Jaber Al-Mubarak Al-Hamad Al-Sabah
Croatia	Ivo Josipović	Zoran Milanović
Ciwba	Raúl Castro
Cyprus	Dimitris Christofias
De Affrica	Jacob Zuma
De Corea	Lee Myung-bak	Kim Hwang-sik
De Sudan	Salva Kiir Mayardit
Denmarc	Margrethe II	Lars Løkke Rasmussen
Y Deyrnas Unedig	Elisabeth II	Theresa May
Dominica	Nicholas Liverpool	Roosevelt Skerrit
Dwyrain Timor	José Ramos Horta	Xanana Gusmão
Ecwador	Rafael Correa
Yr Eidal	Giorgio Napolitano	Mario Monti
El Salvador	Mauricio Funes
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
Fanwatw	Iolu Abil	Sato Kilman
Y Fatican	Pab Bened XVI	Giuseppe Bertello
Feneswela	Nicolas Maduro
Fietnam	Trương Tấn Sang	Nguyễn Tấn Dũng
Ffiji	Epeli Nailatikau	Frank Bainimarama
Y Ffindir	Sauli Niinistö	Jyrki Katainen
Ffrainc	Emmanuel Macron	Jean-Marc Ayrault
Gabon	Ali Bongo Ondimba	Raymond Ndong Sima
Gaiana	Donald Ramotar	Sam Hinds
Y Gambia	Adama Barrow
Georgia	Mikhail Saakashvili	Nikoloz Gilauri
Ghana	John Atta Mills
Gini	Alpha Condé	Mohamed Said Fofana
Gini Bisaw	Mamadu Ture Kuruma	gwag
Gini Gyhydeddol	Teodoro Obiang Nguema Mbasogo	Vicente Ehate Tomi
Gogledd Corea	Kim Il-sung (marw) Kim Jong-un (awdurdod gweinyddol uchaf) Choe Ryong-hae ('Pennaeth Gwlad ar gyfer Materion Tramor')	Choe Yong-rim
Grenada	Elisabeth II, wedi'i chynrychioli gan Carlyle Glean	Tillman Thomas
Gwatemala	Otto Pérez Molina
Gweriniaeth Canolbarth Affrica	François Bozizé	Faustin-Archange Touadéra
Gweriniaeth y Congo	Denis Sassou-Nguesso
Gweriniaeth Dominica	Leonel Fernández
Gweriniaeth Ddemocrataidd Congo	Joseph Kabila	Louis Alphonse Koyagialo (dros dro)
Gweriniaeth Iwerddon	Michael D. Higgins	Enda Kenny
Gweriniaeth Macedonia	Gjorge Ivanov	Nikola Gruevski
Gweriniaeth Pobl Tsieina	Xi Jinping	Li Keqiang
Gweriniaeth Tsiec	Václav Klaus	Petr Nečas
Gweriniaeth Tsieina	Chen Shui-bian	Chang Chun-hsiung
Gwlad Belg	Philippe I	Charles Michel
Gwlad Iorddonen	Abdullah II	Awn Shawkat Al-Khasawneh
Gwlad Pwyl	Bronisław Komorowski	Donald Tusk
Gwlad Swasi	Mswati III, brenin Gwlad Swazi	Themba Dlamini
Gwlad Tai	Rama X	Yingluck Shinawatra
Gwlad yr Iâ	G.Johannesson	Jóhanna Sigurðardóttir
Gwlad Groeg	Karolos Papoulias	Lucas Papademos
Haiti	Michel Martelly	Garry Conille
Hondwras	Porfirio Lobo Sosa
Hwngari	László Kövér (dros dro)	Viktor Orbán
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	Willem-Alexander	Mark Rutte
Israel	Shimon Peres	Benjamin Netanyahu
Jamaica	Elisabeth II, wedi'i chynrychioli gan Patrick Allen	Portia Simpson-Miller
Japan	Naruhito	Shinzo Abe
Jibwti	Ismail Omar Guelleh	Dileita Mohamed Dileita
Laos	Choummaly Sayasone	Thongsing Thammavong
Latfia	Andris Bērziņš	Valdis Dombrovskis
Lesotho	Letsie III, brenin Lesotho	Pakalitha Mosisili
Libanus	Michel Sleiman	Najib Mikati
Liberia	Ellen Johnson-Sirleaf
Libia	Mustafa Abdul Jalil	Abdurrahim El-Keib
Liechtenstein	Hans-Adam II	Klaus Tschütscher
Lithwania	Dalia Grybauskaitė	Andrius Kubilius
Lwcsembwrg	Henri	Jean-Claude Juncker
Madagasgar	Andry Rajoelina	Omer Beriziky
Malawi	Joyce Banda
Maldives	Mohammed Waheed Hassan
Maleisia	Abdul Halim	Najib Tun Razak
Mali	Dioncounda Traoré (dros dro)	Cheick Modibo Diarra (dros dro)
Malta	George Abela	Lawrence Gonzi
Mauritania	Mohamed Ould Abdel Aziz	Moulaye Ould Mohamed Laghdaf
Mauritius	Syr Monique Ohsan Bellepeau (dros dro)	Navin Ramgoolam
Mecsico	Felipe Calderón
Moldofa	Nicolae Timofti	Vlad Filat
Monaco	Albert II	Michel Roger
Mongolia	Tsakhiagiin Elbegdorj	Sükhbaataryn Batbold
Montenegro	Filip Vujanović	Igor Lukšić
Moroco	Mohammed VI	Abdelilah Benkirane
Mosambic	Armando Guebuza	Aires Ali
Myanmar	Thein Sein
Namibia	Hifikepunye Pohamba	Nahas Angula
Nawrw	Sprent Dabwido
Nepal	Ram Baran Yadav	Baburam Bhattarai
Nicaragwa	Daniel Ortega
Niger	Mahamadou Issoufou	Brigi Rafini
Nigeria	Goodluck Jonathan
Norwy	Harald V	Jens Stoltenberg
Oman	Qaboos bin Sa'id Al 'Bu Sa'id
Pacistan	Asif Ali Zardari	Yousaf Raza Gillani
Palaw	Johnson Toribiong
Panama	Martín Torrijos
Papua Gini Newydd	Elisabeth II, wedi'i gynrychioli gan Syr Michael Ogio	Peter O'Neill
Paragwâi	Fernando Lugo
Periw	Ollanta Humala	René Cornejo Díaz
Pilipinas	Benigno Aquino III
Portiwgal	Aníbal Cavaco Silva	Pedro Passos Coelho
Qatar	Hamad bin Khalifa	Hamad ibn Jaber al Thani
Rwanda	Paul Kagame	Pierre Habumuremyi
Rwmania	Traian Băsescu	Mihai Răzvan Ungureanu
Rwsia	Dmitry Medvedev	Vladimir Putin
St. Kitts a Nevis	Elisabeth II, wedi'i chynrychioli gan Syr Cuthbert Sebastian	Denzil Douglas
Sant Lwsia	Elisabeth II, wedi'i chynrychioli gan Neville Cenac	Allen Chastanet
St. Vincent a'r Grenadines	Elisabeth II, wedi'i chynrychioli gan Syr Frederick Ballantyne	Ralph Gonsalves
Sambia	Michael Sata
Samoa	Tupua Tamasese Tupuola Tufuga Efi	Tuila'epa Sailele Malielegaoi
San Marino	[[[Italo Righi]] a Maurizio Rattini
São Tomé a Príncipe	Manuel Pinto da Costa	Patrice Trovoada
Sawdi Arabia	Abdullah
Sbaen	Juan Carlos	Mariano Rajoy
Seland Newydd	Elisabeth II, wedi'i chynrychioli gan Jerry Mateparae	John Key
Senegal	Macky Sall	Abdoul Mbaye
Serbia	Slavica Đukić Dejanović (dros dro)	Mirko Cvetković
Seychelles	James Michel
Sierra Leone	Ernest Bai Koroma
Simbabwe	Emmerson Mnangagwa	Gwag
Singapôr	Tony Tan Keng Yam	Lee Hsien Loong
Slofacia	Ivan Gašparovič	[[[Robert Fico]]
Slofenia	Danilo Türk	Janez Janša
Somalia	Sharif Ahmed	Abdiweli Mohamed Ali
Sri Lanca	Mahinda Rajapaksa	D. M. Jayaratne
Swdan	Abdel Fattah Abdelrahman
Sweden	Siarl XVI	Fredrik Reinfeldt
Y Swistir	Doris Leuthard, Eveline Widmer-Schlump (Arlywydd), Ueli Maurer (Is-arlywydd), Didier Burkhalter, Simonetta Sommaruga, Johann Schneider-Ammann, Alain Berset
Swrinam	Dési Bouterse
Syria	Bashar al-Assad	Adel Safar
Tajikistan	Emomalii Rahmon	Oqil Oqilov
Taleithiau Ffederal Micronesia	Manny Mori
Tansanïa	Jakaya Kikwete	Mizengo Pinda
Tiwnisia	Moncef Marzouki	Hamadi Jebali
Togo	Faure Gnassingbé	Gilbert Houngbo
Tonga	Tupou VI	Sialeʻataongo Tuʻivakanō
Trinidad a Tobago	George Maxwell Richards	Kamla Persad-Bissessar
Tsiad	Mahamat Idriss Déby	Vacant
Tsile	Sebastián Piñera
Twfalw	Elisabeth II, wedi'i chynrychioli gan Iakoba Italeli	Willy Telavi
Twrci	Abdullah Gül	Recep Tayyip Erdoğan
Tyrcmenistan	Gurbanguly Berdimuhammedow
Yr Unol Daleithiau	Donald Trump
Wrwgwái	José Mujica
Wsbecistan	Shavkat Mirziyoyev	Abdulla Oripov
Wcráin	Petro Poroshenko	Mykola Azarov
Wganda	Yoweri Museveni	Amama Mbabazi
Yemen	Abd Rabbuh Mansur Al-Hadi	Mohammed Basindawa
Ynysoedd Marshall	Christopher Loeak
Ynysoedd Solomon	Elisabeth II, wedi'i chynrychioli gan Frank Kabui	Gordon Darcy Lilo