The Saône ( SOHN, French: [son]; Arpitan: Sona; Latin: Arar) is a river in eastern France (modern region of Bourgogne-Franche-Comté). It is a right tributary of the Rhône, rising at Vioménil in the Vosges department and joining the Rhône in Lyon, at the southern end of the Presqu'île.

The name Saône derives from that of the Gallic river goddess Souconna, which has also been connected with a local Celtic tribe, the Sequanes. Monastic copyists progressively transformed Souconna to Saoconna, which ultimately gave rise to Saône. The other recorded ancient names for the river were Brigoulus and Arar. The name Arar later gave rise to specific regional terms in historiography, created to designate various northern parts of historical Burgundy in relation to the river Saône.