Markham was a federal electoral district in Ontario, Canada created in 1988.

Also known as Markham—Whitchurch-Stouffville, it was a federal electoral district that elected representatives to the House of Commons of Canada from 1988 to 2000.

Notably in 1997 this was the only district in Ontario that did not elect a Liberal MP or an Independent (York South-Weston).

It initially consisted of the towns of Markham and Whitchurch-Stouffville in the Regional Municipality of York.

The electoral district was redistributed 1996 into Markham, Oak Ridges and Thornhill ridings.