Regional units of Greece

Regional units of Greece Περιφερειακές ενότητες της Ελλάδας (Greek)
Category	Unitary state
Location	Hellenic Republic
Number	74 regional units
Areas	2,307 km2 (891 sq mi) (Ionian Islands) – 18,810 km2 (7,260 sq mi) (Central Macedonia)
Government	Central government Regional governments monastic government (Athos)
Subdivisions	Municipalities

The 74 regional units of Greece (Greek: περιφερειακές ενότητες, perifereiakés enótites; singular περιφερειακή ενότητα, perifereiakí enótita) are the country's third-level administrative units (counting decentralized administrations as first-level). They are subdivisions of the country's 13 regions, and are further divided into municipalities.

They were introduced as part of the Kallikratis administrative reform on 1 January 2011 and are comparable in area and, on the mainland, coterminous with the "pre-Kallikratis" prefectures of Greece.^[1]