Arnay-le-Duc (French pronunciation: [aʁnɛ lə dyk]) is a commune in the Côte-d'Or department in the Bourgogne-Franche-Comté region of eastern France.

Access to the commune is by the D906 road from Lacanche in the south-east passing through the town and continuing north-west.

The Ruisseau de Barive forms the eastern border of the commune flowing north to join the Arroux.

List of Successive Mayors[7] Arnay-le-Duc has twinning associations with:[8] The inhabitants of the commune are known as Arnétois or Arnétoises in French.

[9] The commune has a number of buildings and structures that are registered as historical monuments: The commune has two religious buildings that are registered as historical monuments: Arnay-le-Duc has been awarded two flowers by the National Council of Towns and Villages in Bloom in the Competition of cities and villages in Bloom.