The flag of Ontario was enacted by the Flag Act on May 21, 1965 in the Legislature of the Province of Ontario. The flag is a defaced Red Ensign, with the Union Flag in the canton and the Ontario shield of arms in the fly.

The Flag Shop carries the flag of Ontario in various sizes and fabrics, as well as crests and decals. For other custom Ontario flag products, please contact The Flag Shop nearest you for more information.