The Dundas Street bus rapid transit is a proposed bus rapid transit (BRT) corridor proposed by Metrolinx for the western part of the Greater Toronto and Hamilton Area in Southern Ontario, Canada.

[2] As of 2021[update], Metrolinx proposed eight BRT stops along Dundas Street between Wharton Way and Confederation Parkway,[4] while in 2018, Mississauga had planned eighteen, within its city limits.

The BRT right-of-way in Cookville between Jaguar Valley Drive and Confederation Parkway is constrained by buildings (including some heritage properties) located close to the street.

[7] On March 5, 2022, Prime Minister Justin Trudeau, along with Mississauga Mayor Bonnie Crombie and Ontario's Associate Minister of Transportation Stan Cho, announced a CA$675,000,000 joint investment for transit projects in Mississauga that includes funding for the Dundas BRT.

[8][9] A 2008 Metrolinx report proposed that the Dundas BRT have its western terminus at Brant Street in Burlington, where it would connect to a proposed Brant Street bus rapid transit proceeding south to Burlington GO Station.