A TTC bus route that runs in Toronto from Donlands to Eglinton Stations. Service runs frequently during rush hour, but tapers to every 30 minutes during off-peak times.

The entire trip takes approximately 45 minutes from Eglinton to Donlands and follows the same route as three other routes until turning south at Laird and Eglinton.

From Eglinton Station, the bus travels:

-East on Eglinton to Laird Drive
-South on Laird Drive through Leaside
-Across the Leaside Bridge, over the Don Valley
-Southeast onto Donlands Ave.
-Into Donlands Station.

During rush hour, buses loop at Eglinton and Laird to deliver the 56B service to northbound travellers out of Donlands. Passengers travelling beyond the service loop at Laird can easily transfer onto the abundant number of buses travelling westbound on Eglinton.