Avenir Certain (foaled 30 April 2011) is a French Thoroughbred racehorse who was unbeaten until racing in the 2014 Prix de l'Arc de Triomphe. She only raced twice as a two-year-old, and after winning one minor race in 2014, she won the Group 1 Poule d'Essai des Pouliches and Prix de Diane and the Group 2 Prix de la Nonette. She is trained by Jean-Claude Rouget and owned by Antonio Caro and Gerard Augustin-Normand.