The French basketball league system is a series of interconnected competitions for professional basketball clubs in France. The system has a hierarchical format with a promotion and relegation system between competitions at different levels. Some of the competitions are: the LNB Pro A, LNB Pro B, Nationale Masculine 1 (NM1), the Nationale Masculine 2 (NM2), the Nationale Masculine 3 (NM3), and the LNB Espoirs.
| Level | League | ||||
|---|---|---|---|---|---|
| 1 | LNB Pro A National 1st division (professional) (18 teams) | ||||
| 2 | LNB Pro B National 2nd division (professional) (18 teams) | ||||
| 3 | Nationale Masculine 1 (NM1) National 3rd Division (Professional) (28 teams in 2 groups) | ||||
| 4 | Nationale Masculine 2 (NM2) National 4th division (Professional) (56 teams in 4 groups) | ||||
| 5 | Nationale Masculine 3 (NM3) National 5th division (amateur) (144 teams in 12 groups) | ||||
| LNB Espoirs Under-21 age group | |||||