Mansfield-et-Pontefract is a municipality in the Pontiac Regional County Municipality of western Quebec, Canada. It is located on the Ottawa River, northwest of Gatineau. It is the most populated municipality in the Pontiac Regional County Municipality, with most of the population and businesses concentrated along Quebec Route 148. It is home to the main tourist attractions of the Pontiac region: the Chutes Coulonge, the George Bryson House, and the Félix-Gabriel-Marchand Bridge.