Don Mills is a subway station that is the eastern terminus of Line 4 Sheppard in Toronto, Ontario, Canada.

Other nearby landmarks include Georges Vanier Secondary School and the Fairview branch of the Toronto Public Library.

A plaque at the platform level commemorates John Marinzel, a worker who died on April 18, 2001, of injuries from an accident during the construction of the station.

However, unlike other terminal stations where the tail tracks are at least as long as a standard six-car train for overnight storage, those at Don Mills are only about two cars in length.

Created by Toronto artist Stephen Cruise, it consists of tile work on walls and inlays on the terrazzo floors: Outside the station (on the north side of Don Mills Road, south of the bus entrance) is a tribute to Northern Dancer, a famous racehorse foaled at E. P. Taylor's Windfields Farm, which was then located on Bayview Avenue.

In mid-2021, to celebrate the TTC's 100th anniversary, a temporary art installation titled Sheppard Subway Construction was put on display at the station.

When the subway is closed, passengers may board buses at the intersection of Don Mills Road and Sheppard Avenue outside the station.