Scarborough (; 2021 Census 629,941) is a district of Toronto, Ontario, Canada, atop the Scarborough Bluffs in the eastern part of the city. Its borders are Victoria Park Avenue to the west, Steeles Avenue to the north, Rouge River and the city of Pickering to the east, and Lake Ontario to the south. It borders Old Toronto, East York and North York in the west and the city of Markham in the north. Scarborough was named after the English town of Scarborough, North Yorkshire.
Scarborough, which was settled by Europeans in the 1790s, has grown from a collection of small rural villages and farms to become fully urbanized with a diverse cultural community. Incorporated in 1850 as a township, Scarborough became part of Metropolitan Toronto in 1953 and was reconstituted as a borough in 1967. Scarborough rapidly developed as a suburb of Toronto over the next decade and became a city in 1983.