Oyonnax (French pronunciation: [ɔjɔna] ⓘ) is the second most populated commune in the Ain department in the Auvergne-Rhône-Alpes region in eastern France.

So Dagobert I sent a delegation including Léger d'Autun to ask the king of Burgundy for her hand and bring her back to Paris.

Near Oyonnax, at a place called Sous-Nierme, the litter of Léger d'Autun broke and wounded the head of his escort.

In recognition, Léger d'Autun, become a bishop and counselor to queen Bathilde, gave the town the privilege of manufacturing wooden combs.

Tourist activities include hiking, canoeing and cross-country skiing among the forests, hills and lakes of the area.