- January 4: Swimmer Georgios Ivanof of Iraklis Salonica, is executed during the German occupation. To honor his memory the club names its basketball court to Ivanofio (Ιβανόφειο) after him.
- January 14: Major Ioannis Tsigantes, leader of the resistance movement Midas 614, is slain during a battle with Italian carabinieri.
- January 19: The "RHS Vasilissa Olga" sinks the Italian ship Stromboli off the coast of Tunisia.
- February 4: Kostas Perrikos, head of resistance group PEAN is executed by the Germans.
- February 12: Greek guerrilas attack and defeat an Italian battalion at Oxynia, Thessaly.
- February 16: Italian occupation troops execute 118 Greeks from Domeniko and Mesochori, Larisa prefecture.
- March 5: Dozens of Greeks are killed during a protest against conscription by the occupying Axis powers.
- March 6: ELAS guerrilas attack a convoy of Italian occupation troops at Fardykampos near Siatista, Macedonia. They capture 600 prisoners and much war materiel.
- March 12: Italian occupation troops execute 40 Greeks at Tsaritsani.
- March 15: The first convoy of Greek Jews leaves for Auschwitz.
- March 20: Italian occupation troops execute several Greeks in Kastoria, western Macedonia. Among those killed is the local priest Father Ch. Papachristou.
- March 23: Archbishop Damaskinos and several Greek business leaders formally request that measures be taken by the Logothetopoulos government for the protection of Greek Jews.
- April 7: Col. Stefanos Sarafis becomes commander of resistance movement ELAS.
- April 8: Greek guerrilas battle Italian occupation troops and kill 15 near Agia Efthymia, Phocis prefecture.
- April 9: Agia Efthymia, Phocis prefecture, is destroyed by Italian occupation troops in retaliation for an ambush by Greek guerrilas on the previous day.
- June 6: Greek communist leader, Pantelis Pouliopoulos, is executed by the Italians near Larisa.
- June 25: 200,000 Greeks take to the streets in a general strike against the German occupation authorities.
- July 13: German occupation troops burn down the village of Kefalovryso, Ioannina prefecture, Epirus. Among those executed is the village priest.
- July 22: Thousands protest in Athens against the expansion of the Bulgarian occupation zone in Macedonia.
- August 16: The village of Kommeno, Arta prefecture, is destroyed by the Germans. 317 of its inhabitants are slain.
- August 18: The last convoy of Thessaloniki Jews arrives in Auschwitz concentration camp.
- September 8: Italy surrenders to the Allies.
- September 11: German troops kill 10 Greeks as they destroy the village of Aetos, Messenia.
- September 12: Cretan guerrilas under Manolis Bantouvas attack German troops near Viannos, Heraklio prefecture.
- September 14: Greek guerrilas, belonging to the EKKA resistance movement, attack and defeat a group of German soldiers at Skaloula. Five Germans are killed and nearly 20 are wounded.
- September 14: Germans destroy 11 villages in Heraklio prefecture. 352 villagers are killed.
- September 15: German occupation troops execute 42 Greeks at Gdochia, Lasithi prefecture, Crete.
- September 15: German occupation troops execute 19 Greeks at Myrtos, Lasithi prefecture, Crete.
- September 15: The Italian garrison of Kefalonia rebels against the Germans. They will fight for seven days assisted by Greek ELAS guerrilas.
- September 22: The Italian garrison of Kefalonia surrenders to the Germans.
- September 26: The RHS Vasilissa Olga is sunk off the coast of Leros by German bombers.
- September 29: 49 Greeks are executed in Paramythia, Epirus by ethnic Albanians and Nazis.
- September 30: 10 Greeks are executed in Patra by the Nazis.
- November 7: German Nazi forces destroy the larger part of Karpenisi by setting it on fire.
- November 26: German occupying forces execute 118 hostages in Monodendri, Laconia.
- December 8: German occupation troops execute 36 Greeks at Kerpini, Achaea prefecture.
- December 13: The Holocaust of Kalavryta takes place as German soldiers execute 1,101 villagers.
- December 14: Elias Venezis' book "Aeolian Land" ("Αιολική Γη") is published.
- December 18: German occupation forces execute 133 persons at Drakia, Thessaly.
- October 19: Takis Economopoulos, football player
- October 29: Dusan Ivkovic, basketball coach.
- October 31: Aristotelis Pavlidis, politician
- December 1: Nicholas Negroponte, Greek-American architect and computer scientist
- December 12: Vassilis Alexakis, novelist.
- December 14: Zoe Laskari, actress.
- January 4: Georgios Ivanof, swimmer, resistance fighter
- January 14: Ioannis Tsigantes, resistance leader
- January 17: Antonis Travlantonis, author.
- January 21: Col. Konstantinos Davakis, WWII hero
- June 6: Pantelis Pouliopoulos, Greek communist leader
- June 27: Vangelis Papazoglou, rebetiko songwriter and singer
- Konstantinos Nider, general