Radenac (French pronunciation: [ʁadnak]; Breton: Radeneg) is a commune in the Morbihan department in Brittany in north-western France.

[3] The river Ével has its source in the commune.

Cyclist Jean Robic, who won the Tour de France in 1947, spent his childhood in Radenac, where his father owned the local cycle shop.

In honour of his great achievement, the commune renamed the street where his home was after him.

Radenac is twinned with a small village of Radnage in Buckinghamshire .