List of tallest buildings in Ontario
Buildings over 150 meters
All of the buildings taller than 150 meters are in Toronto, Mississauga and Niagara Falls, all three cities being part of the Golden Horseshoe.

List of tallest buildings in Ontario

Section Title: Buildings over 150 meters
Table Section Text: All of the buildings taller than 150 meters are in Toronto, Mississauga and Niagara Falls, all three cities being part of the Golden Horseshoe.

Rank	Name	Image	Height m / ft	Floors	Year	City	Notes

CN Tower	-	553 / 1,815	1976	Toronto	Third-tallest free-standing structure on land in the world Tallest free-standing structure in the Western Hemisphere since 1975 Tallest free-standing structure on land in the world from 1975 to 2007 Contains no immediate floors but has the height of 147 storeys

1	First Canadian Place	-	298 / 978	72	1976	Toronto	Tallest building in Canada since 1976 6th tallest building in the world at the time of its completion Tallest building in the world outside of Chicago and New York City at the time of its completion Tallest building completed in Toronto in the 1970s.

2	The St. Regis Toronto	-	277 / 908	59	2011	Toronto	Tallest mixed-use building in Canada Second-tallest building in Canada by standard height.

3	Scotia Plaza	Scotia Plaza 2009.JPG	275 / 902	68	1988	Toronto	Tallest building completed in Toronto in the 1980s.

4	Brookfield Place	-	261 / 856	53	1990	Toronto	Tallest building completed in Toronto in the 1990s.

5	Commerce Court West	-	239 / 784	57	1972	Toronto

6	Toronto-Dominion Tower	TD Centre View from Yonge and King.JPG	223 / 731	56	1967	Toronto	Tallest building completed in Toronto in the 1960s.

7	Bay Adelaide Centre West Tower	-	218 / 715	51	2009	Toronto

8	Ritz-Carlton Toronto	-	208 / 684	53	2011	Toronto

9	Bay Wellington Tower	-	207 / 679	49	1991	Toronto

10	Four Seasons Hotel and Residences West	-	205 / 650	55	2011	Toronto

11	88 Scott	204 / 669	58	2018	Toronto

12	Maple Leaf Square North Tower	-	186 / 610	54	2010	Toronto

13=	Royal Trust Tower	-	183 / 600	46	1969	Toronto

13=	RBC Centre	RBC Centre.JPG	183 / 600	42	2009	Toronto

15=	Royal Bank Plaza South	-	180 / 591	40	1979	Toronto

15=	Absolute World South	180 / 589	56	2011	Mississauga	Tallest building in Ontario outside of the city of Toronto. Tallest skyscraper in any suburban city in all of North America.

16	Hilton Niagara Falls Tower 2	177 / 580	58	2009	Niagara Falls	Tallest building in Ontario outside of the Greater Toronto Area. Tallest hotel in Canada.

17	One King Street West	-	176 / 578	51	2005	Toronto	Tallest completed all-residential skyscraper in Toronto.

18	Maple Leaf Square South Tower	-	174 / 571	50	2010	Toronto

19	44 Charles Street West	-	166 / 545	51	1972	Toronto	25th-tallest building in Canada.

20	Quantum 2	Minto Midtown.JPG	165 / 541	51	2008	Toronto

21	Residences of College Park	-	163 / 535	51	2006	Toronto

22	Success Tower	Success Tower.JPG	162 / 531	54	2009	Toronto

23	Absolute World North	161.2 / 529	50	2012	Mississauga

24	The Uptown Residences	-	158 / 518	48	2011	Toronto

25	Festival Tower	-	157 / 514	42	2010	Toronto

26	TD Waterhouse Tower	TD Waterhouse Tower.JPG	154 / 504	39	1985	Toronto

27	35 Mariner	-	153 / 503	49	2005	Toronto

28	Montage	CityPlace Montage.JPG	153 / 502	48	2009	Toronto

29	The 250	-	151 / 494	35	1992	Toronto	Atop the Toronto Eaton Centre

30=	Two Bloor West	Two Bloor West, CIBC building.JPG	149 / 488	34	1973	Toronto

30=	X Condominium	-	149 / 488	45	2010	Toronto

32=	West One	CityPlace West One.JPG	148 / 486	49	2007	Toronto

32=	Simcoe Place	Simcoe Place.JPG	148 / 486	33	1995	Toronto

34	Residences of College Park South	-	147 / 482	45	2008	Toronto

35	Exchange Tower	-	146 / 479	30	1983	Toronto

36	Commerce Court North	Commerce Court North.JPG	145 / 476	34	1931	Toronto	Tallest building completed in Toronto in the 1930s Tallest building in Canada from 1930 to 1962

37	Simpson Tower	Simpson Tower.JPG	144 / 472	33	1968	Toronto

38	SP!RE	-	143 / 469	43	2007	Toronto

39=	Cadillac Fairview Tower	Cadillac Fairview Tower.JPG	142 / 466	36	1981	Toronto

39=	One Park Tower	142 / 466	38	2008	Mississauga

41	Murano South	Murano, Toronto.JPG	140 / 459	41	2009	Toronto

42	Pantages Tower	-	140 / 458	46	2003	Toronto

Sentence(s)

The tallest building in Ontario is the First Canadian Place with 298 meters (978 feet).

final_sentence: The tallest building in Ontario is the First Canadian Place with 298 meters (978 feet).