2023–24 Luxembourg National Division

The 2023–24 Luxembourg National Division season, also known as BGL Ligue, for sponsorship reasons, was the 110th of top-tier association football in Luxembourg. The season began on 5 August 2023 and ended on 26 May 2024.

The winners (Differdange 03, their seventh title win) qualified for the first qualifying round of the 2024–25 UEFA Champions League. The 2023–24 Luxembourg Cup winners (Progrès Niederkorn) qualified for the second qualifying round of the 2024–25 UEFA Conference League, with the third and sixth-placed teams (F91 Dudelange and UNA Strassen) qualifying for the first qualifying round. The thirteenth and fourteenth-placed teams (U.N. Käerjeng '97 and Fola Esch) qualified for the Luxembourg National Division play-offs, with Fola Esch winning and retaining their place in the league, and U.N Käerjeng '97 losing and being relegated to the 2024–25 Luxembourg Division of Honour alongside the bottom two teams (Marisca Mersch and Schifflange 95).

Teams
Etzella Ettelbruck and Hostert were relegated at the end of the previous season, while Schifflange 95 and Marisca Mersch were promoted from the Luxembourg Division of Honour. Swift Hesperange entered the season as defending league champions.

Luxembourg National Division play-offs
The thirteenth and fourteenth-placed teams (U.N. Käerjeng '97 and Fola Esch) each faced the fourth and third-placed teams from the 2023–24 Luxembourg Division of Honour (Hostert and Rumelange) for the final two places in the 2024–25 Luxembourg National Division.