| Dun-sur-Auron | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Dun-sur-Auron (18).svg |
| Arrondissement: | Saint-Amand-Montrond |
| Canton: | Dun-sur-Auron |
| Insee: | 18087 |
| Postal Code: | 18130 |
| Mayor: | Louis Cosyns[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Le Dunois |
| Coordinates: | 46.8856°N 2.5725°W |
| Elevation M: | 174 |
| Elevation Min M: | 151 |
| Elevation Max M: | 188 |
| Area Km2: | 50.09 |
Dun-sur-Auron (in French pronounced as /dœ̃ syʁ oʁɔ̃/, literally Dun on Auron) is a commune in the Cher department in the Centre-Val de Loire region of France.
A farming area comprising a small town and a couple of hamlets situated by the banks of both the Auron and the canal de Berry some 26miles east of Bourges at the junction of the D10, D14, D28, D34 and the D943 roads. Another small river, the Airain flows northwest through the northern part of the commune.
Dun-sur-Auron dates back from Dunum, a Gaul fortified place. In the Middle Ages it depended from the Viscount of Bourges. In 1101, the last viscount, Eudes Arpin, lord of Dun, sold his estates to King Philip I of France and the city was renamed Dun-le-Roi.