Mackay Street (officially in French: rue Mackay) is a street located in downtown Montreal, Quebec, Canada. Mackay Street is a one-way street, that begins at Sherbrooke Street West, travels southbound and ends at Overdale Avenue, just south of René Lévesque Boulevard.

Mackay Street is named for James Mackay (1760-1822), a trader and explorer for the North West Company who arrived in Montreal in 1776.^[1]

The street is located in the heart of Concordia University's downtown Sir George Williams Campus, otherwise known as the Quartier Concordia.

In April 2009, Concordia University issued a press release calling for proposals on a project that would see part of Mackay Street between Sherbrooke and De Maisonneuve Boulevard turned into a green space for use by students during the summer.^[2] The proposal angered local area merchants and residents, who formed a petition to halt the project. They cited the loss of 45 parking spaces, and the potential for student partying in the street.^[3] The project has been put on hold, according to the university.^[4]

• McTavish Street