The Land of Arlon (Luxembourgish: Arelerland [ˈaːʀəlɐlɑnt]; German: Arelerland [ˈaːʁəlɐlant]; French: Pays d'Arlon [pe.i daʁlɔ̃]; Dutch: Land van Aarlen [ˌlɑnt fɑn ˈaːrlə(n)])[a] is the traditionally Luxembourgish-speaking part of Belgian Lorraine, which is now predominantly French-speaking.
It coincides largely with the arrondissement of Arlon, part of the province of Luxembourg.
In the Land of Arlon, the traditional language is Luxembourgish, which is also spoken in the adjacent Grand-Duchy of Luxembourg.
In 1990, the French Community of Belgium recognised the regional languages on its territory, of which Luxembourgish is one; however, it did not take any further measures.
The following data are the linguistic results of the census as they appeared in the Belgian Official Journal.