Tillières-sur-Avre is a commune in the Eure department and Normandy region of northern France.

In 1013, Richard II of Normandy erected a castle on the benches of the Avre river as this region was being contested by the Norman dukes, the counts of Blois and the French kings.

Around 1041 the castle was captured from him and razed by the French king Henry I but Robert's son, William the Conqueror, rebuild the castle and invested Gilbert's son, Gilbert II, as hereditary custodian of the castle around 1058.

[3] Around the same time, in the 11th century, its church Saint-Hilaire was built in the Romanesque style.

The village is twinned with that of Wendehausen in Thuringia, Germany.