Number One Bloor, Postmodern skyscraper at Bloor Street and Yonge Street intersection, Toronto, Canada

Number One Bloor is a 76-storey, 257-metre residential tower at Bloor and Yonge streets, designed by Hariri Pontarini Architects under David Pontarini. Its concrete-and-glass facade has balconies shaped into wavy vertical forms, and a six-storey podium holds 9,300 m2 of retail space. Amenities occupy the sixth and seventh floors, including a 1,800 m2 outdoor terrace.

A 60-storey tower was proposed for the site in 2005; Bazis International bought the land and announced an 80-storey, 275-metre scheme by Rosario Varacalli in 2007, then sold the property to Great Gulf on 22 July 2009. Great Gulf's Hariri Pontarini design began construction in August 2011, topped out in late 2015 and was completed in December 2017 at 76 storeys and 257 metres.

The podium's street level became a local landmark in September 2019, when Chick-fil-A opened its first standalone Canadian branch there, drawing protests over the chain owner's donations to anti-LGBT organizations, noted because the corner sits near Church and Wellesley, Toronto's main LGBT neighbourhood. The retail podium also held a Nordstrom Rack from May 2018 to May 2023, the chain's first Canadian store.

The tower stands at the corner of Bloor Street East and Yonge Street, directly above Bloor–Yonge station, where Line 1 and Line 2 meet. The six-storey podium holds about 9,300 m2 of retail space, with the residential amenities on floors six and seven. The 76 storeys are reached by lift from the podium lobby.

The tower's concrete-and-glass facade uses balconies to form wavy vertical lines, deliberately avoiding the flat, uniform look of many high-rises. The design won the 2011 International Property Award for Best Residential High-Rise Development Canada, before construction had even topped out.