Major General Themistoklis Grymbiris was born in 1965 in Piraeus. He was admitted to the Hellenic Army Academy in 1982 and graduated in 1986 at the rank of Artillery 2nd Lieutenant.
He attended all the schools stipulated for Artillery, as well as the Army’s War College and the National Defence College.
Throughout his career he has served in Artillery Units, as an instructor in the Artillery School, as a staff officer in the staff of 96 Higher National Guard Battalions Command (Chios) and in the National Guard General Staff.
He has also served as the Commander of the 147 National Guard Battalion (Chios) and the 95 National Guard Unit (Rhodes).
He has served as a staff officer of the HAGS Artillery Directorate, as the aide-de-camp of the Army for His Excellency the President of the Hellenic Republic Mr Karolos Papoulias (2008-2011) as well as the Defence Attaché of the Embassy of Greece in Berlin with concurrent accreditation for the Czech Republic, Poland, Austria and Sweden (2011-2014).
He was promoted to the rank of senior Officer (Brigadier General) in 2015 and was assigned as the Commander of the 96 Higher National Guard Battalions Command (2015-2016) and as Director of the HAGS Operations Directorate (2016-2018).
In 2018 he was promoted to Major General and was assigned as the Director of A’ Branch of the Higher Army Support Military Command (2018-2019) and as Chief of Staff (2019-2020). On 19 March 2020 he was assigned as the Commander of the Hellenic Army Academy.
He has been awarded all the stipulated decorations, medals and commendations.
He speaks English and at a working level German.
He is married and has a son.