| Country | Germany |
|---|---|
| Confederation | FIBA Europe (Europe) |
| Divisions | 4 (North, South-East, South-West and West) |
| Number of teams | 56 teams |
| Level on pyramid | 4 |
| Promotion to | ProB |
| Relegation to | 2. Regionalliga |
| Current champions | TSV Neustadt temps Shooters (North) TG VR-Bank Würzburg Baskets (South-East) SEEBURGER College Wizards (South-West) ETB Miners (West) (2023–24) |
| Website | rln-basketball |
The 1.Regionalliga is the fourth-tier level league of professional club basketball in Germany.