Saint-Christophe-de-Valains (; ) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Saint-Christophe-de-Valains comes from Saint Christopher, patron saint of travelers and Valains, fief of Vieux-Vy-sur-Couesnon.
Saint-Christophe-de-Valains is located to the northeast of Rennes and to the south of the Mont Saint-Michel.
The neighboring communes are Chauvigné, Le Tiercent, Saint-Ouen-des-Alleux, and Vieux-Vy-sur-Couesnon.
Ball every 14 July under the Liberty Oak.