List of State Leaders in 1957 - North America

North America

• Canada
  • Monarch - Elizabeth II, Queen of Canada (1952–present)
  • Governor General - Vincent Massey, Governor General of Canada (1952–1959)
  • Prime Minister -
    1. Louis St. Laurent, Prime Minister of Canada (1948–1957)
    2. John Diefenbaker, Prime Minister of Canada (1957–1963)
• Costa Rica
  • President - José Figueres Ferrer, President of Costa Rica (1953–1958)
• Cuba
  • President - Fulgencio Batista, President of Cuba (1952–1959)
  • Prime Minister -
    1. Jorge García Montes, Prime Minister of Cuba (1955–1957)
    2. Andrés Rivero Agüero, Prime Minister of Cuba (1957–1958)
• Dominican Republic
  • De facto Head of State - Rafael Trujillo, de facto ruler of the Dominican Republic (1930–1961)
  • President - Héctor Trujillo, President of the Dominican Republic (1952–1960)
• El Salvador
  • President - José María Lemus, President of El Salvador (1956–1960)
• Guatemala
  • President -
    1. Carlos Castillo Armas, President of Guatemala (1954–1957)
    2. Luis Arturo González López, Acting President of Guatemala (1957)
    3. Óscar Mendoza Azurdia, Chairman of the Military Junta of Guatemala (1957)
    4. Guillermo Flores Avendaño, Acting President of Guatemala (1957–1958)
• Haiti
  • President -
    1. Joseph Nemours Pierre-Louis, Provisional President of Haiti (1956–1957)
    2. Franck Sylvain, Provisional President of Haiti (1957)
    3. Léon Cantave, Army Chief of General Staff of Haiti (1957)
    4. Executive Government Council, President of Haiti (1957)
    5. Léon Cantave, Army Chief of General Staff of Haiti (1957)
    6. Daniel Fignolé, Provisional President of Haiti (1957)
    7. Antonio Thrasybule Kebreau, Chairman of the Military Council of Haiti (1957)
    8. François Duvalier, President of Haiti (1957–1971)
• Honduras
  • President -
    1. Military Government Council, President of Honduras (1956–1957)
    2. Ramón Villeda Morales, President of Honduras (1957–1963)
• Mexico
  • President - Adolfo Ruiz Cortines, President of Mexico (1952–1958)
• Nicaragua
  • President - Luis Somoza Debayle, President of Nicaragua (1956–1963)
• Panama
  • President - Ernesto de la Guardia, President of Panama (1956–1960)
• United States of America
  • President - Dwight D. Eisenhower, President of the United States (1953–1961)