The Flag of Longueuil, Quebec, Canada, is the official symbol representing this city located on the south shore of Montreal Island. Adopted on June 24, 1985, the flag consists of a white square centered within a field of azure blue, with the city’s coat of arms positioned inside the white square.The Longueuil coat of arms features three main elements: an open book symbolizing knowledge, a key representing access and openness, and a fleur-de-lis as a tribute to the city’s heritage. The flag serves as a visual representation of Longueuil’s history, values, and identity within Quebec and Canada.