Clévilliers (French pronunciation: [klevilje]) is a commune in the Eure-et-Loir department and Centre-Val de Loire region of north-central France.

It lies 13 km north-west of Chartres and some 80 km west-south-west of Paris.

The Vacheresses stream flows through the commune, which is bordered by Tremblay-les-Villages (north), Challet (east), Berchères-Saint-Germain (south-east), Briconville (south), and Mittainvilliers-Vérigny (south-west).

The eastern border of the Parc naturel régional du Perche, an area of outstanding natural beauty, lies less than 25 km west of Clévilliers

This Eure-et-Loir geographical article is a stub.