Presidents & Heads of States, ABA-BUC

President, in government, the officer in whom the chief executive power of a nation is vested. The president of a republic is the head of state, but the actual power of the president varies from country to country; in the United States, Africa, and Latin America the presidential office is charged with great powers and responsibilities, but the office is relatively weak and largely ceremonial in Europe and in many countries where the prime minister, or premier, functions as the chief executive officer.
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Presidents & Heads of States Encyclopedia Articles By Title

Abacha, Sani
Sani Abacha was a Nigerian military leader, who served as head of state (1993–98). Abacha received his formal military......
Abbas, Ferhat
Ferhat Abbas was a politician and leader of the national independence movement who served as the first president......
Abbas, Mahmoud
Mahmoud Abbas Palestinian politician who served briefly as prime minister of the Palestinian Authority (PA) in......
Abdul Kalam, A.P.J.
A.P.J. Abdul Kalam was an Indian scientist and politician who played a leading role in the development of India’s......
Abdul Rahman, Tuanku
Tuanku Abdul Rahman was the first supreme chief of state of the Federation of Malaya. After the declaration of......
Abiola, Moshood Kashimawo Olawale
Moshood Kashimawo Olawale Abiola was a Nigerian business executive, philanthropist, and politician who is hailed......
Abubakar, Abdusalam
Abdusalam Abubakar is a Nigerian military leader, who served as head of state (1998–99). Hailing from the middle......
Acheampong, Ignatius Kutu
Ignatius Kutu Acheampong was a Ghanaian army officer, who, after leading a military revolt that overthrew the government......
Adamkus, Valdas
Valdas Adamkus was the president of Lithuania (1998–2003 and 2004–09). During World War II Adamkus fought with......
Adams, John
John Adams was an early advocate of American independence from Great Britain, a major figure in the Continental......
Adams, John Quincy
John Quincy Adams was the sixth president of the United States (1825–29) and eldest son of President John Adams.......
Aguinaldo, Emilio
Emilio Aguinaldo was a Filipino leader and politician who fought first against Spain and later against the United......
Ahidjo, Ahmadou
Ahmadou Ahidjo was the first president of the United Republic of Cameroon, who served from 1960 to 1982. He presided......
Ahmadinejad, Mahmoud
Mahmoud Ahmadinejad is an Iranian political leader who served as president of Iran (2005–13). Ahmadinejad, the......
Ahmed, Fakhruddin Ali
Fakhruddin Ali Ahmed was a statesman who was president of India from 1974 to 1977. The son of an army doctor from......
Ahmed, Iajuddin
Iajuddin Ahmed was the 17th president of Bangladesh (2002–09). From October 2006 to January 2007 he served simultaneously......
Ahtisaari, Martti
Martti Ahtisaari was a Finnish politician and noted mediator who was president of Finland (1994–2000). In 2008......
Akufo-Addo, Nana Addo Dankwa
Nana Addo Dankwa Akufo-Addo is a Ghanaian lawyer and politician who became president of Ghana in January 2017.......
Alcalá Zamora, Niceto
Niceto Alcalá Zamora was a Spanish statesman, prime minister, and president of the Second Republic (1931–36), whose......
Alemán, Miguel
Miguel Alemán was the president of Mexico from 1946 to 1952. The son of a village shopkeeper, Alemán studied law......
Alessandri Palma, Arturo
Arturo Alessandri Palma was a Chilean president (1920–25, 1932–38) who early defended workers’ groups, especially......
Alfonsín, Raúl
Raúl Alfonsín was the civilian president of Argentina (1983–89), elected after eight years of military rule, and......
Alia, Ramiz
Ramiz Alia was the president of Albania (1982–92) and head of the communist Party of Labour of Albania (1985–91),......
Aliyev, Ilham
Ilham Aliyev is the longtime president of Azerbaijan (2003– ) who has leveraged the country’s oil wealth to enrich......
Allende, Salvador
Salvador Allende was Chile’s first socialist president. Allende, born into an upper-middle-class family, received......
Alvear, Marcelo T de
Marcelo T. de Alvear was a statesman and political leader who served as president of Argentina from 1922 until......
Amin, Hafizullah
Hafizullah Amin was a leftist politician who briefly served as the president of Afghanistan in 1979. Amin was born......
Amin, Idi
Idi Amin was a military officer and president (1971–79) of Uganda whose regime was noted for the sheer scale of......
Anastasiades, Nicos
Nicos Anastasiades is a Greek Cypriot politician who was president of Cyprus (2013–23) and head of the centre-right......
Andropov, Yury
Yury Andropov was the head of the Soviet Union’s KGB (State Security Committee) from 1967 to 1982 and his country’s......
Aoun, Michel
Michel Aoun is a commander of the Lebanese Army (1984–88) who was appointed prime minister in 1988 (though the......
Aquino, Benigno, III
Benigno Aquino III was a Filipino politician who served as president of the Philippines (2010–16) and was the scion......
Aquino, Corazon
Corazon Aquino was a Philippine political leader who served as the first female president (1986–92) of the Philippines,......
Arbenz, Jacobo
Jacobo Arbenz was a soldier, politician, and president of Guatemala (1951–54) whose nationalistic economic and......
Arce, Luis
Luis Arce is a Bolivian politician, economist, banker, and academic who became president of Bolivia in November......
Arias Sánchez, Óscar
Óscar Arias Sánchez is a Costa Rican politician who served as president of Costa Rica from 1986 to 1990 and again......
Arias, Arnulfo
Arnulfo Arias was three times president of Panama (June 1940–October 1941, November 1949–May 1951, and October......
Aristide, Jean-Bertrand
Jean-Bertrand Aristide is a Haitian politician and Roman Catholic priest of the Salesian order, who was a vocal......
Arroyo, Gloria Macapagal
Gloria Macapagal Arroyo is a Filipino politician who was president of the Philippines (2001–10). Arroyo’s father,......
Arteaga, Rosalía
Rosalía Arteaga is an Ecuadoran politician who served as the first female president of Ecuador (1997), though she......
Arthur, Chester A.
Chester A. Arthur was the 21st president of the United States. Elected vice president on the Republican ticket......
Arzú, Álvaro
Álvaro Arzú was a Guatemalan businessman and politician who served as president of Guatemala (1996–2000). He helped......
Arévalo, Juan José
Juan José Arévalo was the president of Guatemala (1945–51), who pursued a nationalistic foreign policy while internally......
Assad, Bashar al-
Bashar al-Assad is the Syrian president from 2000. He succeeded his father, Hafez al-Assad, who had ruled Syria......
Assad, Hafez al-
Hafez al-Assad was the president of Syria (1971–2000) who brought stability to the country and established it as......
Atatürk, Kemal
Kemal Atatürk was a soldier, statesman, and reformer who was the founder and first president (1923–38) of the Republic......
Auriol, Vincent
Vincent Auriol was the first president of the Fourth French Republic, who presided over crisis-ridden coalition......
Aylwin, Patricio
Patricio Aylwin was a Chilean politician who served as president from 1990 to 1994. He was the country’s first......
Ayub Khan, Mohammad
Mohammad Ayub Khan was the president of Pakistan from 1958 to 1969, whose rule marked a critical period in the......
Azaña, Manuel
Manuel Azaña was a Spanish minister and president of the Second Republic whose attempts to fashion a moderately......
Azikiwe, Nnamdi
Nnamdi Azikiwe was the first president of independent Nigeria (1963–66) and a prominent nationalist figure. Azikiwe......
Ba Maw
Ba Maw was a politician who in 1937 became the first Burmese premier under British rule; he later was head of state......
Babangida, Ibrahim
Ibrahim Babangida is a Nigerian military leader who served as head of state (1985–93). Born in northern Niger state,......
Bachelet, Michelle
Michelle Bachelet is a Chilean politician who served as president of Chile (2006–10; 2014–18). She was the first......
Bakiyev, Kurmanbek
Kurmanbek Bakiyev is a Kyrgyz politician who served as prime minister (2000–02) and president (2005–10) of Kyrgyzstan.......
Bakr, Aḥmad Ḥasan al-
Aḥmad Ḥasan al-Bakr was the president of Iraq from 1968 to 1979. Al-Bakr entered the Iraqi Military Academy in......
Balaguer, Joaquín
Joaquín Balaguer was a lawyer, writer, and diplomat who was vice president of the Dominican Republic (1957–60)......
Balmaceda, José Manuel
José Manuel Balmaceda was a liberal reformer and president of Chile (1886–91) whose conflict with his legislature......
Banda, Hastings Kamuzu
Hastings Kamuzu Banda was the first president of Malawi (formerly Nyasaland) and the principal leader of the Malawi......
Banda, Joyce
Joyce Banda is a Malawian politician who served as vice president (2009–12) and president (2012–14) of Malawi.......
Bani-Sadr, Abolhasan
Abolhasan Bani-Sadr was an Iranian economist and politician who in 1980 was elected the first president of the......
Barrios, Justo Rufino
Justo Rufino Barrios was the president of Guatemala (1873–85), who carried out liberal domestic policies by dictatorial......
Barroso, José Manuel
José Manuel Barroso is a Portuguese politician who served as prime minister of Portugal (2002–04) and president......
Bashir, Omar al-
Omar al-Bashir is a Sudanese military officer who led a revolt that overthrew the elected government of Sudan in......
Batista, Fulgencio
Fulgencio Batista was a soldier and political leader who twice ruled Cuba—first in 1933–44 with an efficient government......
Batlle Berres, Luis
Luis Batlle Berres was an Uruguayan journalist who became active in politics and served as president of his country......
Batlle y Ordóñez, José
José Batlle y Ordóñez was a statesman who, as president of Uruguay (1903–07 and 1911–15), is generally credited......
Baudouin I
Baudouin I was the king of the Belgians from 1951 to 1993, who helped restore confidence in the monarchy after......
Bayar, Celâl
Celâl Bayar was the third president of the Turkish Republic (1950–60), who initiated etatism, or a state-directed......
Belaúnde Terry, Fernando
Fernando Belaúnde Terry was a statesman, architect, and president of Peru (1963–68, 1980–85), known for his efforts......
Ben Ali, Zine al-Abidine
Zine al-Abidine Ben Ali was an army officer and politician who served as president of Tunisia (1987–2011). Ben......
Ben Bella, Ahmed
Ahmed Ben Bella was the principal leader of the Algerian War of Independence against France, the first prime minister......
Ben-Zvi, Itzhak
Itzhak Ben-Zvi was the second president of Israel (1952–63) and an early Zionist leader in Palestine, who helped......
Beneš, Edvard
Edvard Beneš was a statesman, foreign minister, and president, a founder of modern Czechoslovakia who forged its......
Berdymukhammedov, Gurbanguly
Gurbanguly Berdymukhammedov is a Turkmen dentist and politician who served as president of Turkmenistan (2006–22)......
Betancourt, Rómulo
Rómulo Betancourt was a Venezuelan politician who served as president of Venezuela (1945–48; 1959–64). Left wing......
Bhutto, Zulfikar Ali
Zulfikar Ali Bhutto was a Pakistani statesman and politician who served as president (1971–73) and prime minister......
Biden, Joe
Joe Biden is the 46th president of the United States (2021–25) and was the 47th vice president of the United States......
Bierut, Bolesław
Bolesław Bierut was a statesman and Communist Party official who came to be called the Stalin of Poland after playing......
Biya, Paul
Paul Biya is a Cameroonian politician who has served as president of Cameroon since 1982. Prior to that post, he......
Björnsson, Sveinn
Sveinn Björnsson was a statesman and diplomat who from 1944 to 1952 served as the first president of the Republic......
Bogd Gegeen Khan
Bogd Gegeen Khan was the "Living Buddha" of the Yellow Hat (Dge-lugs-pa) sect. In 1911 he proclaimed Mongolia independent......
Bokassa, Jean-Bédel
Jean-Bédel Bokassa was an African military leader who was president of the Central African Republic (1966–76) and......
Bolsonaro, Jair
Jair Bolsonaro is a Brazilian politician who served as president of Brazil from 2019 to 2023. A right-wing nationalist,......
Boluarte, Dina
Dina Boluarte is a Peruvian politician who became the first woman president of Peru in December 2022, when Pres.......
Bolívar, Simón
Simón Bolívar was a Venezuelan soldier and statesman who led the revolutions against Spanish rule in the Viceroyalty......
Bordaberry Arocena, Juan María
Juan María Bordaberry Arocena was the president of Uruguay in 1972–76. Bordaberry was born into a wealthy ranching......
Bosch, Juan
Juan Bosch was a Dominican writer, scholar, and politician elected president of the Dominican Republic in 1962......
Botha, P. W.
P. W. Botha was the prime minister (1978–84) and first state president (1984–89) of South Africa. A native of the......
Boudiaf, Muhammad
Muhammad Boudiaf was an Algerian political leader who was a founder of the revolutionary National Liberation Front......
Boumedienne, Houari
Houari Boumedienne was an army officer who became president of Algeria in July 1965 following a coup d’etat. Boukharouba’s......
Bourguiba, Habib
Habib Bourguiba was the architect of Tunisia’s independence and first president of Tunisia (1957–87), one of the......
Bouteflika, Abdelaziz
Abdelaziz Bouteflika was a Moroccan-born Algerian politician who served as president of Algeria from April 1999......
Boyer, Jean-Pierre
Jean-Pierre Boyer was a politician and soldier who served as president of Haiti in 1818–43 and tried unsuccessfully......
Braga, Teófilo
Teófilo Braga was a poet, critic, and statesman who was the first to attempt a complete history of Portuguese literature.......
Brand, Sir Johannes Henricus
Sir Johannes Henricus Brand was a statesman and president (1864–88) of the Orange Free State who expanded the boundaries......
Bravo, Nicolás
Nicolás Bravo was a soldier and statesman, one of the founders of republican Mexico, serving as its president or......
Brezhnev, Leonid
Leonid Brezhnev was a Soviet statesman and Communist Party official who was, in effect, the leader of the Soviet......
Brum, Baltasar
Baltasar Brum was a statesman noted for his reform of the educational and welfare systems in Uruguay and for his......
Bucaram, Abdalá
Abdalá Bucaram is an Ecuadoran athlete and politician who served as president of Ecuador (1996–97). Bucaram was......

Presidents & Heads of States Encyclopedia Articles By Title