The Arconce (French pronunciation: [aʁkɔ̃s]) is a 98.8 km (61.4 mi) long river in the Saône-et-Loire department in central France. Its source is in Mary, 2 km (1.2 mi) southwest of the village. It is a right tributary of the Loire, into which it flows at Varenne-Saint-Germain, 2.5 km (1.6 mi) northwest of the village.

It flows generally southwest, but north from Anzy-le-Duc to its mouth, with numerous meanders.

The following communes are ordered from source to mouth : Mary, Gourdon, Le Rousset, Marizy, Ballore, Mornay, Martigny-le-Comte, Viry, Charolles, Changy, Lugny-lès-Charolles, Saint-Julien-de-Civry, Nochize, Poisson, Varenne-l'Arconce, Saint-Didier-en-Brionnais, Sarry, Anzy-le-Duc, Montceaux-l'Étoile, Versaugues, L'Hôpital-le-Mercier, Saint-Yan, Varenne-Saint-Germain