Türkiye Basketbol Ligi
| Founded | 1969 |
|---|---|
| First season | 1969–70 |
| Country | Turkey |
| Confederation | FIBA Europe |
| Number of teams | 18 |
| Level on pyramid | 2 |
| Promotion to | Basketbol Süper Ligi |
| Relegation to | TB2L |
| International cup | TBL Federation Cup |
| Current champions | Trabzonspor (2nd title) (2024–25) |
| Most championships | Tofaş (5 titles) |
| Website | Link |
| 2025–26 Türkiye Basketbol Ligi | |
The Turkish Basketball First League (Turkish: Türkiye Basketbol Ligi; TBL), is the second-tier level league of professional club basketball in Turkey. The league was previously known as Turkish Basketball Second League (TB2L).