The Greek C Basket League, or Greek C Basketball League (Greek: Ελληνική Γ Μπάσκετ Λιγκ), is a national basketball league in Greece.

It is the 4th-tier level of the basketball league system in Greece, and was founded in 1985.

[1] It is organized by the Hellenic Basketball Federation (E.O.K.).

[2] It began in the 1985–86 season, and originally took place with a league format of two groups.

Currently, the league consists of six groups, with an overall total of 66 teams.