Boissy-le-Sec

Coordinates: 48°28′40″N 2°05′20″E / 48.4778°N 2.0889°E / 48.4778; 2.0889

Boissy-le-Sec is a commune in the Essonne department in Île-de-France in northern France.

Inhabitants of Boissy-le-Sec are known as Boissyons.