← 1965 1964 1963 1966 in Argentina → 1967 1968 1969
Decades:	1940s 1950s 1960s 1970s 1980s
See also:	Other events of 1966 List of years in Argentina

Events from the year 1966 in Argentina.

Incumbents

• President: Arturo Umberto Illia (1 January - 28 June), Juan Carlos Onganía (29 June - 31 December)^[1]
• Vice president: Carlos Humberto Perette (1 January - 28 June), vacant

Governors

• Buenos Aires Province:
  • until 28 June: Anselmo Marini
  • 28 June-5 July: Jorge Von Stecher
  • from 5 July: Francisco A. Imaz
• Cordoba: Justo Páez Molina (until 28 June)
• Chubut Province: Manuel Pío Raso then Carlos Arturo Vellegal then Gerardo Ojanguren then Rodolfo Varela
• Mendoza Province:
  • until 28 June: Francisco Gabrielli
  • 28 June-22 July: Tomás José Caballero
  • from 22 July: José Eugenio Blanco
• Santa Fe Province: Aldo Tessio (until 28 June); Carlos Sylvestre Begnis (from 28 June)

Vice Governors

• Buenos Aires Province: vacant

Events

• 29 July – La Noche de los Bastones Largos

Births

• 11 August – Juan María Solare, composer and pianist
• 18 August – Gustavo Charif, artist

Deaths

• 26 December – Guillermo Stábile, footballer and manager (b. 1905)