The Leuci were a Gallic tribe, recorded to have lived in the southern part of what is now Lorraine. They are mentioned by Julius Caesar as a people supplying wheat to the Roman army in 58 BC, along with the Lingones and Sequani.
Hillforts in the region of the Leuci include some small ones in the Vosges, and Boviolles in the Ornain valley in the west of the territory. There is also a possible oppidum in Geneviève (Essey). Toul (in Latin Tullum) was the Roman capital "civitas" of the tribe. But Ptolemy listed Naix-aux-Forges (Latin Nasium) also as a civitas of the Leuci, and it was probably larger.