Stormont was an electoral riding in Ontario, Canada.

It was created in 1867 at the time of confederation and was abolished in 1973 before the 1975 election.

The riding roughly corresponded to the territory of Stormont County.

Its name reverted to Stormont for the 1890 election, and was not changed again until the riding's dissolution in 1975.

In the electoral redistribution of 1975, Stormont was split between the new ridings of Cornwall and Stormont—Dundas and Glengarry.