Durham—York was a provincial electoral district in northern Durham Region and York Region in Ontario, Canada that elected members to the Legislative Assembly of Ontario. It contained the towns of East Gwillimbury, Newmarket, Whitchurch–Stouffville, Uxbridge, Georgina and Brock.

The riding was created in 1975 as Durham North from parts of York North and Ontario, Ontario South and Durham. It was renamed Durham—York in 1977 and existed until 1999 when it was distributed into York North, Pickering—Ajax—Uxbridge and Haliburton—Kawartha Lakes—Brock.

1. Bill Newman, Progressive Conservative (1975–1981)
2. Kenneth Ross Stevenson, Progressive Conservative (1981–1987)
3. Bill Ballinger, Liberal (1987–1990)
4. Larry O'Connor, New Democratic (1990–1995)
5. Julia Munro, Progressive Conservative (1995–1999)

1975 Ontario general election

Candidates	Party	Votes	%
Bill Newman	PC	11,226	39.41%
Clare W Morrison	Liberal	11,071	38.86%
Lesley Griffin	NDP	6,189	21.73%

• Legislative Assembly of Ontario: Past & Present MPPs

44°14′24″N 79°11′42″W / 44.240°N 79.195°W / 44.240; -79.195