Moncourt-Fromonville (French pronunciation: [mɔ̃kuʁ fʁɔmɔ̃vil] ⓘ, before 2025: Montcourt-Fromonville)[3] is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Inhabitants are called Montcourtois.

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