Canton of Saint-Cyr-l'École

The canton of Saint-Cyr-l'École is an administrative division of the Yvelines department, northern France. Its borders were modified at the French canton reorganisation which came into effect in March 2015. Its seat is in Saint-Cyr-l'École.

It consists of the following communes:
 * 1) Bois-d'Arcy
 * 2) Chavenay
 * 3) Fontenay-le-Fleury
 * 4) Rennemoulin
 * 5) Saint-Cyr-l'École
 * 6) Villepreux