511 Zum Steeles is a bus rapid transit route in Brampton, Ontario, Canada.

The route runs from the Brampton Gateway Terminal at Steeles Avenue and Hurontario Street to Humber College North Campus at Finch Avenue West and Highway 27 in Toronto with connections to the planned Line 6 Finch West line and various express bus services, via Bramalea GO Train Station.

Though largely industrial through Brampton, Steeles Avenue sees bus service every six minutes on current route 11.

In September 2015, limited service on 511 Zum Steeles was extended to Lisgar GO Station operating only on weekdays.

This marks the first time that these routes directly serviced the station, as previously they stopped on-street at the intersection of Steeles and Bramalea.