Birch Cliff is a neighbourhood in Toronto, Ontario, Canada. It is located in the southwest part of the old city of Scarborough running along the shore of Lake Ontario atop the western part of the Scarborough Bluffs. Birch Cliff has a large Irish population. About one-third of Birch Cliff residents are of Irish origin. The area can also be broken down to two smaller areas west of Warden Avenue to Victoria Park Avenue: