List of State Leaders in 1918 - South America

South America

• Argentina
  • President - Hipólito Yrigoyen, President of Argentina (1916–1922)

• Bolivia
  • President - José Gutiérrez, President of Bolivia (1917–1920)

• Brazil
  • President -
    1. Venceslau Brás, President of Brazil (1914–1918)
    2. Delfim Moreira, Acting President of Brazil (1918–1919)

• Chile
  • President - Juan Luis Sanfuentes, President of Chile (1915–1920)

• Colombia
  • President -
    1. José Vicente Concha, President of Colombia (1914–1918)
    2. Marco Fidel Suárez, President of Colombia (1918–1922)

• Ecuador
  • President - Alfredo Baquerizo, President of Ecuador (1916–1920)

• Paraguay
  • President - Manuel Franco, President of Paraguay (1916–1919)

• Peru
  • President - José Pardo y Barreda, President of Peru (1915–1919)
  • Prime Minister -
    1. Francisco Tudela y Varela, President of the council of ministers of Peru (1917–1918)
    2. Germán Arenas Zuñiga, President of the council of ministers of Peru (1918–1919)

• Uruguay
  • President - Feliciano Viera, President of Uruguay (1915–1919)

• Venezuela
  • President - Victorino Márquez Bustillos, Provisional President of Venezuela (1914–1922)