The German basketball league system or German basketball league pyramid is a series of interconnected competitions for professional basketball clubs in Germany. The system has a hierarchical format, with a promotion and demotion system between competitions at different levels. There are currently six different competitions on the pyramid: the 1st-tier level Basketball Bundesliga (BBL), the 2nd-tier level ProA, the 3rd-tier level ProB, the 4th-tier level 1. Regionalliga, the 5th-tier level 2. Regionalliga, and the 6th-tier level Landesliga Oberliga.
| Level | League | ||||
|---|---|---|---|---|---|
| 1 | Basketball Bundesliga (BBL) National 1st Division (18 teams) | ||||
| 2 | 2. Basketball Bundesliga National 2nd Division (1975–2007) | ||||
| 2 | ProA National 2nd Division (2007–present) (16 teams) | ||||
| 3 | ProB National 3rd Division (2007–present) (24 teams in two 12 team groups) | ||||
| 4 | 1. Regionalliga National 4th Division (53 teams in 4 groups) | ||||
| 5 | 2. Regionalliga National 5th Division (112 teams in 9 groups) | ||||
| 6 | Landesliga Oberliga National 6th Division (218 teams in 13 groups) | ||||