Toronto West, also known as West Toronto, was a provincial riding that was created in Toronto, Ontario when the country of Canada was established in 1867. At the time Toronto was divided into two ridings, West Toronto and East Toronto. In 1886, these ridings were dissolved and a combined riding of the entire city was created which elected three members. In 1894 this riding was split into four parts of which Toronto West was one. It occupied the western part of the old city of Toronto. From 1908 to 1914 it elected two members to the legislature.

Toronto Northwest was an Ontario provincial electoral district that existed from 1914 to 1926. It occupied an area north of College and Gerrard between Lansdowne and Spadina. In 1926 there was a major redistribution of Ontario seats which resulted in Toronto Northwest being split between five new ridings called from west to east, Brockton, Dovercourt, Bellwoods, St. Andrew, and St. Patrick.