Vice Admiral Alexandros Diakopoulos (Greek: Αλέξανδρος Διακόπουλος) is a senior Hellenic Navy officer and in 2019–2020 the first National Security Advisor of Greece, in the Cabinet of Kyriakos Mitsotakis.
[1] He is the son of lawyer and politician Georgios Diakopoulos (1929-2016), who served as Member of Parliament (MP) for Magnesia with the conservative New Democracy party.
[1] Promoted to commodore on 20 March 2013, he was head of the International Relations Directorate of the Hellenic National Defence General Staff until November 2014, when he was promoted to Deputy Director General of National Defence Policy and International Relations.
He resigned from his post on 19 August 2020 for undisclosed reasons but believed to be related to comments made public earlier.
[3] He resigned from his position on 19 August 2020, after public statements that confirmed that the Turkish research vessel Oruç Reis had carried out exploration activities in Greek waters.