Montivilliers (French pronunciation: [mɔ̃tivije] or [mɔ̃tivilje]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

A large light industrial and farming town by the banks of the river Lézarde in the Pays de Caux, situated just 4 miles (6.4 km) north of Le Havre, at the junction of the D489, D52, D926 and D31 roads.

Pre-Roman archaeological discoveries include Bronze Age axes and jade jewelry.

The old Roman road from here to Harfleur was destroyed by the English in 1415.

The Abbey Church of Notre-Dame, sometimes referred to as the Montivilliers Abbey dates back to 684, although it was destroyed by a Viking raid in 850, and rebuilt as a church in both the Romanesque and Gothic styles.