The Flag of Vaughan, Ontario, Canada is the official symbol of the city of Vaughan, a municipality located in the Regional Municipality of York, Ontario. Adopted on February 24, 1998, the flag consists of a white field divided diagonally by a blue line from the upper hoist-side corner to the lower fly-side corner. The blue diagonal represents the Humber River, which flows through Vaughan. The city’s coat of arms, displaying three green maple leaves and a red rose, is placed on the intersection of the diagonal and the center of the white field. The flag honors the region’s historical significance as a settlement area and its modern development.