Enniskillen is a township in the Canadian province of Ontario, within Lambton County.

It is located at the intersection of Highway 21 (Oil Heritage Road) and Rokeby Line.

It was named after Sir Galbraith Lowry Cole's father who was the Earl of Enniskillen, Northern Ireland.

The township comprises the communities of Oil City, Glen Rae and Marthaville, and surrounds but does not include the independent municipalities of Petrolia and Oil Springs.

This Southwestern Ontario geographical article is a stub.