Not to be confused with Duhamel-Ouest in the Abitibi-Témiscamingue region of Quebec.Duhamel is a town and municipality in the Outaouais region of Quebec, Canada. It is the largest municipality in surface area in the Papineau Regional County Municipality.Its western portion consists mostly of undeveloped Laurentian Hills, part of the Papineau-Labelle Wildlife Reserve. The town itself is located along the Petite-Nation River between Lake Simon and Lake Gagnon.