Guidel (French pronunciation: [gidɛl]; Breton: Gwidel) is a commune in the Morbihan department of Brittany in north-western France.

[3] Inhabitants of Guidel are called in French Guidélois.

The communal cemetery, containing 108 tombs from the World War II, has been listed by the Commonwealth War Graves Commission.

The municipality launched a linguistic plan through Ya d'ar brezhoneg on 27 March 2007.

In 2008, there was 6,44% of the children attended the bilingual schools in primary education.