Neuilly-en-Dun (French pronunciation: [nœji ɑ̃ dœ̃]) is a commune in the Cher department in the Centre-Val de Loire region of France.

An area of lakes, streams and farming comprising the village and several hamlets situated by the banks of the Auron and Sagonin rivers and the canal de Berry, some 28 miles (45 km) southeast of Bourges, at the junction of the D91 and the D76 roads.