List of Greek Resistance organizations

During the period of the Axis Occupation of Greece in the Second World War, a multitude of Resistance organizations sprang up. A May 1943 report of the Intelligence Bureau of the Greek government in exile mentioned 33 active groups, a number that increased to 79 in a joint British report of 17 October 1943. According to some sources, the number was as high as 140. These numbers include groups of vastly different natures, which can be roughly divided in three categories: the major organizations, which displayed significant regional or nationwide action, including guerrilla operations against the Occupation authorities; the small political groupings, mainly active in Athens, with a limited following and engaged mainly in political propaganda and small-scale sabotage; and a small number of groups focused on intelligence and sabotage operations, in direct cooperation with the British secret services in the Middle East.

These were organizations with a political agenda, usually progressive, republican and with more or less socialist tendencies. They all developed guerrilla forces, but with the exception of the National Liberation Front, none succeeded in becoming a true nationwide mass movement, and were confined to the regions where they were first established.

The National Liberation Front (Ethniko Apeleftherotiko Metopo, EAM) was by far the largest organization, with a membership estimated between half and two million and up to 150,000 fighters. It was formed on 27 September 1941 out of several leftist parties and organizations, such as the Socialist Party of Greece (SΚΕ), the Union of People's Democracy (ΕLD), and the Agricultural Party of Greece (AKE), but the central role was played by the Communist Party of Greece (KKE). From 1943 onwards, EAM came into increasing conflict with the other Resistance groups. The parties and organizations that functioned within EAM included:

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