Nerius is a Celtic god worshipped in Gaul; he is a healing god, worshipped at Neris-les-Bains at a thermal spring.

Myth
Unknown.

Cult
Nerius received votive and dedicatory offerings from his worshippers; otherwise little is known of the specifics of his cult. He was associated with a healing thermal spring in his city of Neriomagus.

Etymology
Nerius’ name may have derived from the Proto-Celtic *nero or “hero.

Region
Nerius was worshipped in Gaul, in what is now France, particularly in the city of Neris-les-Bains.

Literary evidence
Unknown.

Archaeological evidence
Haegen, France; Neris-les-Bains, France

Toponymic evidence
Nerius was the patron god of the city of Neriomagus, now known as Neris-les-Bains.