Pierrefonds may refer to: Pierrefonds, Oise commune in Oise, France Château de Pierrefonds, castle in Pierrefonds, restored by Eugène Viollet-le-Duc Pierrefonds-Roxboro, a borough of Montreal, Canada Pierrefonds Comprehensive High School, a high-school in the borough Pierrefonds-Senneville, the borough that preceded the current one Pierrefonds, Quebec, a defunct city now part of the borough Pierrefonds—Dollard, a federal district on the island of Montreal Pierrefonds Airport, an airport in the island of Réunion Pierrefonds River, a tributary of the Panache River in Quebec, Canada