Admiral Ramón Castro Jijón (15 November 1915 – 1 November 1984) was an Ecuadorian politician. He was the President of Ecuador from 11 July 1963 to 29 March 1966. He was appointed commander of the Ecuadorian Navy by Carlos Julio Arosemena Monroy. He later overthrew Arosemena in a military coup. For his entire term as President he was chairman of a military junta.