Guilliers (French pronunciation: [ɡilje]; Breton: Gwiler-Porc'hoed) is a commune in the Morbihan department of Brittany in north-western France.

[3] Inhabitants of Guilliers are called in French Guilliérois.

The town is located 49 km (30 mi) northeast of Vannes.

Historically, Guiiliers belongs to Porhoët and Upper Brittany.

This Morbihan geographical article is a stub.