Néris-les-Bains (French pronunciation: [neʁi le bɛ̃]; Occitan: Nerís) is a commune in the Allier department in the Auvergne region in central France.

The name Néris comes from the Gaul God Nérios, a deity personifying the local thermal spring (Latinized to "Nerius").

A circle theater (amphitheater) was built to offer circus games and stage performances to the soldiers and inhabitants.

Around 275 C.E., the Germanic invasions destroyed a part of the town and the population fled, leaving behind monetary treasures.

Stone blocks belonging to the public buildings were thus used for the sarcophaguses now located under the glass pyramid on the church square.

The current romanesque church dates back to the 11th or 12th century and was built in the same place as the original 6th-century basilica, which was erected upon the ruins of a Roman building.

Néris' new golden age began when the Dauphine, Duchess of Angoulême, lay the foundation stone of the new thermal resort.