Le Tronquay (French pronunciation: [lə tʁɔ̃kɛ] ⓘ) is a commune in the Eure department in Normandy in northern France.

The commune of Le Tronquay includes the localities Les Cornets, La Grand Fray, La Motte, Le Fresnay, and Les Landez, and notable farms are Les Callouettes, Les Brûlins, Le Bâtiment, and La Garenne.

Le Tronquay was first mentioned in the 12th century.

The name Tronquay is probably related to the word tronc meaning "trunk".

In 1787, the commune Les Hogues was separated from the territory of Le Tronquay.