Chairman of the Provisional Government Junta, 1903-1904 José Agustín Arango: 3 November 1903 - 20 February 1904 Presidents of Panama, 1904-present Manuel Amador Guerrero: 20 February 1904 - 1 October 1908 José Domingo de Obaldía: 1 October 1908 - 1 March 1910 Carlos Antonio Mendoza (acting): 1 March - 1 October 1910 Federico Boyd (acting): 1 - 5 October 1910 Pablo Arosemena Alba (acting): 5 October 1910 - 1 October 1912 Belisario Porras Barahona: 1 October 1912 - 1 October 1916 Ramón Maximiliano Valdés: 1 October 1916 - 3 June 1918 Ciro Luis Urriola (acting): 3 June - 1 October 1918 Pedro Antonio Díaz (acting): 1 - 12 October 1918 Belisario Porras Barahona: 12 October 1918 - 30 January 1920 Ernesto Tisdel Lefevre (acting): 30 January - 1 October 1920 Belisario Porras Barahona: 1 October 1920 - 1 October 1924 Rodolfo Chiari: 1 October 1924 - 1 October 1928 Florencio Harmodio Arosemena: 1 October 1928 - 3 January 1931 Ricardo Joaquín Alfaro Jované (acting): 16 January 1931 - 5 June 1932 Harmodio Arias Madrid: 5 June 1932 - 1 October 1936 Juan Demóstenes Arosemena: 1 October 1936 - 16 December 1939 Ezequiel Fernández Jaén (acting): 16 - 18 December 1939 Augusto Samuel Boyd (acting): 18 December 1939 - 1 October 1940 Arnulfo Arias Madrid: 1 October 1940 - 9 October 1941 Ricardo Adolfo de la Guardia Arango: 9 October 1941 - 15 June 1945 Enrique Adolfo Jiménez Brin (provisional): 15 June 1945 - 7 August 1948 Domingo Díaz Arosemena: 7 August 1948 - 28 July 1949 Daniel Chanis Pinzón: 28 July - 20 November 1949 Roberto Francisco Chiari Remón: 20 - 24 November 1949 Arnulfo Arias Madrid: 24 November 1949 - 9 May 1951 Alcibíades Arosemena: 9 May 1951 - 1 October 1952 José Antonio Remón Cantera: 1 October 1952 - 2 January 1955 José Ramón Guizado Valdés: 2 January - 29 March 1955 Ricardo Arias Espinosa: 29 March 1955 - 1 October 1956 Ernesto de la Guardia Navarro: 1 October 1956 - 1 October 1960 Roberto Francisco Chiari Remón: 1 October 1960 - 1 October 1964 Marco Aurelio Robles Méndez: 1 October 1964 - 1 October 1968 Arnulfo Arias Madrid: 1 - 11 October 1968 José María Pinilla Fábrega (Chairman Provisional Junta): 12 October 1968 - 18 December 1969 Demetrio Lakas Bahas: 19 December 1969 - 11 October 1978 Aristides Royo: 11 October 1978 - 31 July 1982 Ricardo de la Espriella: 31 July 1982 - 13 February 1984 Jorge Illueca: 13 February - 11 October 1984 Nicolás Ardito Barletta Vallarino: 11 October 1984 - 28 September 1985 Eric Arturo Delvalle: 28 September 1985 - 26 February 1988 Manuel Solís Palma (acting): 26 February 1988 - 1 September 1989 Francisco Rodríguez (provisional): 1 September - 20 December 1989 Guillermo Endara Galimany: 20 December 1989 - 1 September 1994 Ernesto Pérez Balladares: 1 September 1994 - 1 September 1999 Mireya Moscoso: 1 September 1999 -
