McCowan was a terminal station on Line 3 Scarborough of the Toronto subway.

In February 2021, the Toronto Transit Commission (TTC) recommended the closure of Line 3 in November 2023 and its replacement by bus service until the completion of the Scarborough extension of Line 2 Bloor–Danforth.

[2][3] However, this station permanently closed following a derailment on July 24, 2023, after which the TTC decided not to reopen Line 3 service.

[1] The station structure was built on three levels: Line 3 was on the upper floor, an automatic entrance from the Consilium Place office complex via the Pedway pedestrian walkway was on the second floor, and the station entrance from McCowan Road with the collector and the concourse was on the lower floor.

In earlier years both platforms were used for line-end and westbound trains, but the double crossover allowed eastbound trains to cross over to the westbound platform, making for a more efficient system.