Waterloo North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1968.

It was created by the British North America Act of 1867 which entitled each of north and south ridings of the County of Waterloo to elect one Member of Parliament.

In 1903, it was re-defined to consist of the townships of North Waterloo, Wellesley and Woolwich, the towns of Berlin and Waterloo, and the village of Elmira.

In 1947, it was re-defined to consist of the city of Kitchener, the town of Waterloo and the townships of Wellesley and Woolwich, and the northern part of the township of Waterloo.

The electoral district was abolished in 1966 when it was redistributed between Kitchener, Waterloo and Wellington—Grey ridings.