Georgios Papadopoulos (/ˌpæpəˈdɒpələs/ PAP-ə-DOP-əl-əs; Greek: Γεώργιος Παπαδόπουλος [ʝeˈorʝi.os papaˈðopulos]; 5 May 1919 – 27 June 1999) was a Greek military officer and dictator who led a coup d'etat in Greece in 1967 and became the country's Prime Minister from 1967 to 1973. He also was the President of Greece under the junta in 1973, following a referendum. However, after causing a massacre by deploying military riflemen and a tank brigade to attack non-violent protestors to suppress the Athens Polytechnic uprising, he was, in turn, overthrown by hardliner Dimitrios Ioannidis, in a string of events that would culminate in the fall of the regime in 1974. His and the dictatorship's legacy, as well as its methods he constructed and effects on Greek economy and society as a whole, are still fiercely debated.
He joined the Hellenic Army during the Second World War and initially helped resist the Italian invasion of Greece in the Greco-Italian War. He is widely believed to have later collaborated as a member of the Axis-aligned Security Battalions. After the war, he rose to the rank of colonel in the army.