Ioannis Charalambopoulos (Greek: Ιωάννης Χαραλαμπόπουλος; 10 February 1919 – 16 October 2014) was a Greek Army officer (Colonel of the Engineering Corps) and socialist politician who served as Minister of Foreign Affairs and Minister of National Defence of Greece.

Charalambopoulos was born in 1919 in Psari, Oichalia, Messenia to a military family.

[1][3] During the Greek military junta of 1967–1974, Charalambopoulos founded the Democratic National Resistance Movement, and spent three years in internal exile for his opposition to the regime.

[1] On 21 October 1981 he was appointed Minister of Foreign Affairs in the first cabinet of Andreas Papandreou and served in the position until 26 July 1985.

[4][5] He was then appointed Deputy Prime Minister of Greece during Papandreou's second term until 18 November 1988, in addition receiving the portfolio of National Defence on 25 April 1986 which he held until 2 July 1989.