Line 2 Bloor–Danforth

Line 2 Bloor–Danforth is a subway line in the Toronto subway system, operated by the Toronto Transit Commission (TTC). It has 31 stations and is 26.2 kilometres (16.3 mi) in length. It opened on February 26, 1966, and extensions at both ends were completed in 1968 and again in 1980.

The line runs primarily a few metres north of Bloor Street from its western terminus at Kipling Avenue with a direct connection to the Kipling GO Station to the Prince Edward Viaduct east of Castle Frank Road, after which the street continues as Danforth Avenue and the line continues running a few metres north of Danforth Avenue until just east of Main Street, where it bends northeasterly and runs above-grade until just east of Warden station, where it continues underground to its eastern terminus, slightly east of Kennedy Road on Eglinton Avenue, which has a direct connection to the Kennedy GO Station. The subway line is closed nightly for maintenance, during which Blue Night Network bus routes provide service along the route.

The most travelled part of the line is located in Toronto's midtown area known as Yorkville. In this area, the subway connects to Line 1 Yonge–University at Spadina, St. George and Yonge stations. Towards the east, where the line runs parallel to Danforth Avenue, it serves areas such as Greektown (also known as "the Danforth") and the East Danforth neighbourhood. It then runs through a very short stretch of East York to its eastern terminus in Scarborough, where it connected to the former Line 3 Scarborough. To the west of Yorkville, the line continues along Bloor Street serving many communities such as the Annex, Koreatown, Bloorcourt Village, Bloordale Village, Junction Triangle, Bloor West Village, a very short stretch in York, and the Kingsway and Islington–Etobicoke City Centre areas in Etobicoke, where it terminates at Kipling Avenue in Six Points.

Construction of an extension to Sheppard Avenue and McCowan Road to replace Line 3 Scarborough began on June 23, 2021.