Originally surveyed as the first concession road north of the baseline (then Lot Street, now Queen Street), it was known by many names, including the Tollgate Road (as the first tollgate on Yonge north of Lot Street was constructed there in 1820) then St. Paul's Road (after the nearby church, constructed 1842). From 1844 until 1854 it was known as Sydenham Road after Baron Sydenham, Governor General of Canada 1839–1841. The street was then given its current name in honour of Joseph Bloor, a local brewer and land speculator who founded the Village of Yorkville in 1830 on the north side of this street and who was one of the street's original residents.