Cornell is a neighbourhood in northeast Markham, Ontario and bounded by Highway 407, 16th Avenue, Ninth Line, and the Donald Cousens Parkway.

Cornell was seen by then-Markham Town Council as a way to deter the ongoing sprawl by encouraging residential density.

The community, particularly Cornell Village, is designed as a walkable neighbourhood with a variety of housing types and retail.

Cornell Village, between Highway 7 and 16th Avenue, is fully populated with medium density residential.

[7] The section north of Cornell Community Park to 16th Avenue was formerly part of the original Markham By-pass to divert traffic from Markham Village before the present Donald Cousens Parkway was constructed, with the section south of it built as a new road diverging to the southwest (This severed the bypass, with the southern section becoming part of William Forster Road, leaving part of its former right-of-way passing through the present park.).