Yann-Fañch Kemener (born April 7, 1957) is a traditional singer from Brittany, born in Sainte-Tréphine (Côtes-d'Armor), France.

He took part in reviving Kan ha diskan (French: chant et contre-chant) in the 1970s and 1980s, especially with Erik Marchand. He collected songs from the oral tradition in the Breton language.