Saint-Avé (Breton: Sant-Teve) is a commune in the Morbihan department of Brittany in north-western France.
Inhabitants of Saint-Avé are called in French Avéens.
The municipality launched a linguistic plan through Ya d'ar brezhoneg on March the 25th of 2005.
In 2008, there was 15.35% of the children attended the bilingual schools in primary education.