Plouguerneau (French pronunciation: [pluɡɛʁno]; Breton: Plougerne) is a commune in the Finistère department of Brittany in north-western France.

A municipality located between the right bank of the coastal river Aber-Wrac'h and the English Channel, Plouguerneau is made up of three towns: Plouguerneau in the center of the municipality, Lilia to the west facing the sea and Le Grouanec to the east facing land.

[clarification needed] Since 14 July 1967 the commune has been twinned with Neckarhausen, and from 1975 Edingen-Neckarhausen, in Baden-Württemberg.

[3] The commune is twinned with a number of villages in South East Cornwall, England, including: Inhabitants of Plouguerneau are called in French Plouguernéens.

In 2008, 12.52% of primary-school children attended bilingual schools, where Breton language is taught alongside French.