Vezin-le-Coquet (Breton: Gwezin, Gallo: Bezein) is a commune in the Ille-et-Vilaine department of Brittany in northwestern France.
A men's prison, the Centre Penitentiaire pour Hommes de Vezin (operational since March 2010), is located within the commune.
Inhabitants of Vezin-le-Coquet are called Vezinois in French.