Montagny may refer to:
In France:
- Montagny, Loire
- Montagny, Rhône
- Montagny, Savoie
- Montagny AOC, a wine appellation in the Côte Chalonnaise subregion of Burgundy.
In Switzerland:
- Montagny, Fribourg, consisting of
- Montagny-les-Monts
- Montagny-la-Ville
- Montagny-près-Yverdon, Vaud