Luxembourg Basketball League
| Sport | Basketball |
|---|---|
| Founded | 1933 |
| No. of teams | 12 |
| Country | Luxembourg |
| Continent | Europe |
| Most recent champion(s) | Etzella (16th title) (2024–25) |
| Most titles | Nitia and Etzella (16 titles) |
| Sponsor(s) | Total |
| Level on pyramid | 1 |
| Relegation to | Nationale 2 |
| Domestic cup(s) | Luxembourg Cup |
| Official website | luxembourg.basketball |
The Nationale 1 Hommes, officially named the Luxembourg Basketball League (LBBL), is the highest men's basketball league in Luxembourg. The league's governing body is Fédération Luxembourgeoise de Basketball (FLBB). The league was previously known by sponsorships names Diekirch League and Total League.