Korissia (Greek: Κορισσία) is a former municipality on the island of Corfu, Ionian Islands, Greece.

Since the 2019 local government reform it is part of the municipality South Corfu, of which it is a municipal unit.

[2] It is in the southern part of the island.

[3] The seat of the municipality was the town of Argyrades.

The municipal unit Korissia is subdivided into the following communities (constituent villages in brackets):