ガリア・ナルボネンシス
Transalpine Gaul, meaning literally "Gaul on the other side of the Alps" or "Gaul across the Alps", is approximately modern Belgium, France, Switzerland, Netherlands, and Western Germany in what would become the Roman provinces of Gallia Narbonensis, Gallia Celtica (later Lugdunensis and Aquitania) and Gallia Belgica.