Guignen

Guignen Ginyen (Gallo) Gwinien (Breton)
Commune
The church in Guignen
Coat of arms
Location of Guignen
Guignen Show map of France Guignen Show map of Brittany
Coordinates: 47°55′16″N 1°51′38″W / 47.9211°N 1.8606°W / 47.9211; -1.8606
Country	France
Region	Brittany
Department	Ille-et-Vilaine
Arrondissement	Redon
Canton	Guichen
Intercommunality	Vallons de Haute-Bretagne
Government
• Mayor (2020–2026)	Evelyne Lefeuvre1
Area 1	53.05 km2 (20.48 sq mi)
Population  (2023)2	4,175
• Density	78.70/km2 (203.8/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	35127 /35580
Elevation	21–122 m (69–400 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Guignen (French pronunciation: [ɡiɲɛ̃]; Breton: Gwinien; Gallo: Ginyen) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.

The title of Viscount of Guignen had been the property of the House of Rohan since the 15th century. It was passed through to the Princes of Condé, members of the House of Bourbon by a marriage between Louis Joseph de Bourbon, Prince of Condé to Charlotte de Rohan who was created Viscountess in 1745. At her death in 1760, it became one of the subsidiary titles of the Condé's being confiscated during the revolution.

Inhabitants of Guignen are called Guignennais in French.