| Competition: | Luxembourg National Division |
| Season: | 2011–12 |
| Winners: | F91 Dudelange |
| Relegated: | FC Swift Hesperange US Rumelange US Hostert |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | F91 Dudelange |
| Continentalcup2: | Europa League |
| Continentalcup2 Qualifiers: | Jeunesse Esch CS Grevenmacher FC Differdange 03 |
| League Topscorer: | Omar Er Rafik (Differdange 03) (23) |
| Biggest Home Win: | F91 10-0 Pétange |
| Biggest Away Win: | Hostert 1-9 F91 |
| Highest Scoring: | Hostert 1-9 F91 RM Hamm B. 8-2 Swift F91 10-0 Pétange |
| Matches: | 182 |
| Total Goals: | 592 |
| Prevseason: | 2010–11 |
| Nextseason: | 2012–13 |
The 2011–12 Luxembourg National Division was the 98th season of top-tier football in Luxembourg. It began on 5 August 2011 and ended on 13 May 2012. F91 Dudelange were the defending champions having won their ninth league championship in the previous season.
Etzella Ettelbruck and Jeunesse Canach were relegated to the Division of Honour after finishing 13th and 14th in the previous season. Jeunesse Canach were relegated after one year in the top flight while Etzella leave after an eight-year stay in the league. They were replaced by 2010–11 Division of Honour champions Union 05 Kayl-Tétange and runners-up Rumelange. Kayl-Tétange are taking part in this competition for the first time in their history, while Rumelange return to the league after a one-year absence.
Wiltz 71 as 12th-placed team had to compete in a single play-off match against 3rd-placed Division of Honour side Hostert. Hostert won the match after a penalty shootout, thus winning promotion to the league for the first time in their history. Meanwhile, Wiltz 71 were relegated after one year in the league.
| Team | Venue | Capacity | |
|---|---|---|---|
| Stade du Thillenberg | 7,830 | ||
| Stade Jos Nosbaum | 2,600 | ||
| Stade Émile Mayrisch | 3,900 | ||
| Op Flohr Stadion | 4,000 | ||
| Stade Jos Becker | 1,500 | ||
| Stade de la Frontière | 5,400 | ||
| Stade um Bëschel | 1,000 | ||
| Stade Municipal (Pétange) | 3,300 | ||
| Stade Jos Haupert | 4,830 | ||
| Stade Achille Hammerel | 5,814 | ||
| Luxembourg-Cents | 2,800 | ||
| Stade Municipal (Rumelange) | 2,950 | ||
| Stade Alphonse Theis | 3,058 | ||
| Stade Victor Marchal | 1,000 |
The 12th-placed club in the National Division, Swift Hesperange, competed in a relegation play-off match against the third-placed team from the Division of Honour, Wiltz, for one spot in the following season's competition. Wiltz won the match by 6 goals to 2, and they returned to the top division after a one-year absence. Swift Hesperange were relegated to the Division of Honour after an eleven-year stay in the top division.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Omar Er Rafik | Differdange 03 | 23 |
| 2 | CS Grevenmacher | 20 | |
| RM Hamm Benfica | |||
| 4 | F91 Dudelange | 19 | |
| 5 | F91 Dudelange | 16 | |
| 6 |  Tony Lopes | Union 05 Kayl-Tétange | 14 |
| 7 | Gauthier Caron | Differdange 03 | 13 |
| Johan Carlos Miranda | Swift Hesperange | ||
| 9 | Daniel Gomez | Jeunesse Esch | 12 |
| Nicolas Romero | Racing FC |