Rethymno is one of the four prefectures of Crete built at the north of the island. It is situated between the prefectures of Chania and Heraklion, abutting the Cretan Sea in the north and the Libyan Sea in the south. Its capital, which has the same name as the prefecture, is situated 58 km from the town of Chania and 78 km from the town of Heraklion.
The central part of the town of Rethymno is built on the cape of the northern shore of the prefecture. The developing town stretches along the northern sandy beach, which has a total length of 13 km, whilst a range of low mountains rises up south of the town centre. The district of Rethymno extends from Lefka Ori to Psiloritis and it is 1.496 km with 70.095 people.