The Greek C Basket League, or Greek C Basketball League (Greek: Ελληνική Γ Μπάσκετ Λιγκ) is the national fourth-tier level of the basketball league system in Greece. It is also known as the Third National Championship, C National Championship, Third National League, C National League, and Fourth Division, or in Greek, Γάμμα Εθνική καλαθοσφαίρισης (Gamma Ethniki Basketball). It is organized by the Hellenic Basketball Federation (E.O.K.).
|No. of teams||66|
|Level on pyramid||4th-tier (Greece)|
|Promotion to||Greek B Basket League|
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.
- "Κλήρωση Εθνικών Πρωταθλημάτων και Κυπέλλου". basket.gr. Retrieved 12 October 2015.