Belgian Lorraine is the part of Lorraine that lies in the south of the Belgian province of Luxembourg, in Wallonia.

The term is used solely in a geological context, as the region borders the geologically-distinct Ardennes, to the north.

Culturally and linguistically, Belgian Lorraine is made up of two sub-regions:

• The Romance-speaking part (in which French dialects are spoken) called Gaume, with Virton as the main cultural city.
• The Luxembourgish-speaking part called Land of Arlon (in Luxembourgish: Arelerland), with Arlon (Arel) as the main cultural city and the capital of the (Belgian) province of Luxembourg.

Both have Standard French as official administrative language, with Luxembourgish recognised as a minority language by the French Community of Belgium.

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