Chamigny (French pronunciation: [ʃamiɲi] ⓘ) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

It is located in the Marne valley in a wooded setting, east of the main D603 road.

The Château de Tanqueux manor house dates back to 1488, and the parish church of St Étienne to 1130.

It has been classified since 1981 as a monument historique by the French Ministry of Culture.

This article related to a Seine-et-Marne location is a stub.