Attica Prefecture is a prefecture (nomos) of Greece and consisted of the following prefectural-level administrations (nomarchies):
Athens (No. 1 on the map to the right)
East Attica (No. 2 on the map to the right)
Piraeus (No. 3 on the map to the right)
West Attica (No.4 on the map to the right)
It is the only prefecture subdivided like this and in many contexts the sub-units were regarded as prefectures.