Gonfreville-l'Orcher (French pronunciation: [ɡɔ̃fʁəvil lɔʁʃe]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

An industrial town based around an ancient village situated in the Pays de Caux, some 5 miles (8.0 km) east of Le Havre, in between the D982 and D9015 roads.

The A131 autoroute cuts through the middle of the commune alongside the banks of the Tancarville canal.

The etymology of the first part of the name is Gunfridr's farm, a Scandinavian farmer who probably settled in the 10th century.

A priory had stood here since 1024 but long before that, Bronze Age people had been here, witnessed by the tools unearthed during the 19th century and the name Gournay is a Celtic archetype *Gornako, connected with a wet place.