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

Fontenay-Trésigny is located 43 km southeast of Paris, 24 km northeast of Melun, 28 km south of Meaux and 36 km northwest of Provins.

Fontenay-Trésigny lies in the heart of the Brie, in a strategic position in the center of the department of Seine-et-Marne.

[4] Inhabitants of Fontenay-Trésigny are called Trésifontains in French.

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