Athanasios Exadaktylos (Greek: Αθανάσιος Εξαδάκτυλος, c. 1869–1936) was a Hellenic Army officer who rose to the rank of Major General and played an important role in the Macedonian Struggle and served in various high staff positions, including as Deputy Chief of the Hellenic Army General Staff.

He roamed across central Macedonia under various guises, among others a teacher or a salesman, working as a spy and liaison with Greek communities and armed bands.

Exadaktylos also served as a military expert in the Greek delegations to the London and Bucharest peace conferences.

Due to his monarchist convictions, he sided against Eleftherios Venizelos during the National Schism and was dismissed from the army in 1917.

In 1921, he served briefly as Chief of Staff of the Interior Army, while the bulk of the Greek military was engaged in the Asia Minor Campaign.