List of tallest structures in Canada

This is a list of the tallest one hundred structures in Canada, measured from the base to the tallest point. This may refer to the roof top, antenna, spire, mast or as in the case with smokestacks and bridges, the highest structural point.
This list includes buildings, towers, transmission towers, chimneys, bridges, and oil platforms.
There is a separate list for guyed masts since their heights are not fully verifiable and may be inaccurate by several metres. In many cases, measurements are taken to the height of the tallest transmitter rather than the actual highest structural point.
The pinnacle and roof height figures are sourced from SkyscraperPage and/or the Council on Tall Buildings and Urban Habitat. In cases of conflicting data, both heights are listed

Tallest 100 structures in Canada (not including guyed masts)

Rank	Name	Location	Pinnacle height	Roof height	Floor count	Year completed	Image
1	CN Tower	Toronto, Ontario		n/a	118	1976
2	Inco Superstack	Sudbury, Ontario		n/a	n/a	1972
3	First Canadian Place	Toronto, Ontario	antenna		72	1975
4	Commerce Court West	Toronto, Ontario	antenna		57	1972
5	Hebron platform	Grand Banks of Newfoundland			n/a	2017
6	The St. Regis Toronto	Toronto, Ontario	spire		57	2012
7	Scotia Plaza	Toronto, Ontario			68	1988
8	Aura (Toronto)	Toronto, Ontario			78	2014
9	TD Canada Trust Tower	Toronto, Ontario	spire		53	1990
10	Number One Bloor	Toronto, Ontario			75	2015
11	Smokestack, Flin Flon Smelter Stack	Flin Flon, Manitoba		n/a	n/a	1973
12	Stantec Tower	Edmonton, Alberta			69	2018
13	Brookfield Place (Calgary), East	Calgary, Alberta			56	2017
14	CIBC Tower	Montreal, Quebec	antenna	614 ft 604 ft	45	1962
15	West White Rose platform	Grand Banks of Newfoundland			n/a	2025
16	The Bow	Calgary, Alberta			58	2011
17	Ice Condominiums, East	Toronto, Ontario			67	2014
18	Harbour Plaza Residences, East	Toronto, Ontario			66	2017
19	1250 René-Lévesque	Montreal, Quebec	spire		47	1992
20	Eau du Soleil	Toronto, Ontario			63	2017
21 tie	Hibernia Platform	Grand Banks of Newfoundland		n/a	n/a	1997
21 tie	Ten York	Toronto, Ontario			68	2017
21 tie	Harbour Plaza Residences, West	Toronto, Ontario			62	2017
23	TD Bank Tower	Toronto, Ontario			56	1967
24	Telus Sky	Calgary, Alberta			60	2017
25	Bay-Adelaide Centre West,	Toronto, Ontario			52	2009
26 tie	Smokestack, Hearn Generating Station	Toronto, Ontario		n/a	n/a	1971
26 tie	Suncor Energy Centre	Calgary, Alberta			53	1983
27	Shangri-La Toronto	Toronto, Ontario			65	2012
28	Eighth Avenue Place, East Tower	Calgary, Alberta			49	2011
29	Ritz-Carlton Toronto	Toronto, Ontario			52	2011
30 tie	Bay Wellington Tower	Toronto, Ontario			49	1990
30 tie	Massey Tower	Toronto, Ontario			60	2018
32	Smokestack, Wesleyville Generating Station	Wesleyville, Ontario		n/a	n/a	mid 1970s
33	Residences of 488 University	Toronto, Ontario			55	2018
34 tie	1000 de la Gauchetière	Montreal, Quebec			51	1992
34 tie	L Tower	Toronto, Ontario			57	2013
36	Place Ville Marie	Montreal, Quebec	antenna		46	1962
37 tie	Four Seasons Hotel and Residences	Toronto, Ontario			52	2012
37 tie	88 Scott	Toronto, Ontario			57	2013
39	ICE Condos, West	Toronto, Ontario			57	2013
40	Living Shangri-La	Vancouver, British Columbia	glass fins		58	2008
41 tie	Smokestack, Lennox Generating Station Units 1+2	Bath, Ontario		n/a	n/a	1976
41 tie	Smokestack, Lennox Generating Station Units 3+4	Bath, Ontario		n/a	n/a	1976
41 tie	Smokestack, Thunder Bay Generating Station	Thunder Bay, Ontario		n/a	n/a	1984
41 tie	YC Condominiums	Toronto, Ontario			60	2019
47 tie	Bankers Hall - East Tower	Calgary, Alberta			52	1989
47 tie	Bankers Hall - West Tower	Calgary, Alberta			52	2000
49	Bay-Adelaide, East	Toronto, Ontario			44	2016
50	E Condos, South	Toronto, Ontario			58	2018
51 tie	Smokestack, Copper Cliff nickel refinery	Sudbury, Ontario		n/a	n/a	1954
51 tie	Wellesley on the Park	Toronto, Ontario			60	2018
53	JW Marriott Edmonton	Edmonton, Alberta			54
54	Calgary Tower	Calgary, Alberta		n/a	n/a	1968
55	Tour de la Bourse	Montreal, Quebec			47	1964
56	100 Adelaide West, Ernst & Young Tower	Toronto, Ontario			40	2017
57 tie	Paradox Hotel Vancouver	Vancouver, British Columbia			67	2016
57 tie	Solo District - Altus	Burnaby, British Columbia			49	2016
59	Amazing Brentwood One	Burnaby, British Columbia			56	2016
60 tie	Maple Leaf Square, North	Toronto, Ontario			54	2010
60 tie	RBC Centre, Simcoe Place	Toronto, Ontario			42	2009
62	Smokestack, Ashbridges Bay Sewage Treatment Plant Sludge Incinerator	Toronto, Ontario		n/a	n/a	1970s
63	Casa II	Toronto, Ontario			57	2016
64	U Condominiums II	Toronto, Ontario			55	2014
65 tie	Royal Trust Tower	Toronto, Ontario			46	1969
65 tie	Smokestack, Coleson Cove Generating Station 1	Lorneville, New Brunswick		n/a	n/a	1977
65 tie	Smokestack, Coleson Cove Generating Station	Lorneville, New Brunswick		n/a	n/a	2001
65 tie	Syncrude Mildred Lake, Main Stack	Mildred Lake, Alberta		n/a	n/a
69	Centennial Place I	Calgary, Alberta	spire		40	2010
70	Casa III	Toronto, Ontario			55	2018
71	INDX Condominiums	Toronto, Ontario			54	2016
72	Absolute World South	Mississauga, Ontario			56	2011
73 tie	400 Third	Calgary, Alberta			45	1988
73 tie	TransCanada Tower	Calgary, Alberta			38	2001
73 tie	Hilton Niagara Falls Tower 2	Niagara Falls, Ontario			47	2009
76 tie	Eighth Avenue Place, West Tower	Calgary, Alberta			41	2014
77	Édifice Marie-Guyart	Quebec City, Quebec	antenna		33	1972
78	One King Street West	Toronto, Ontario			51	2005
79	Olympic Stadium	Montreal, Quebec		n/a	n/a	1987
80 tie	Royal Bank Plaza South	Toronto, Ontario			40	1976
80 tie	L'Avenue	Montreal, Quebec			50	2010
81 tie	Pylon of Sorel-Tracy, North Tower	Sorel-Tracy, Quebec		n/a	n/a
81 tie	Pylon of Sorel-Tracy, South Tower	Sorel-Tracy, Quebec		n/a	n/a
83	Maple Leaf Square South	Toronto, Ontario			50	2010
84	Sun Life Financial Tower	Toronto, Ontario			35	2016
85 tie	Jamieson Place	Calgary, Alberta			36	2010
85 tie	Harbour Centre	Vancouver, British Columbia	antenna		28	1977
87 tie	Lambton Generating Station, Stack 1	Corunna, Ontario	557 ft or 550 ft	n/a	n/a	1969-70
87 tie	Lambton Generating Station, Stack 2	Corunna, Ontario	557 ft or 550 ft	n/a	n/a	1969-70
89	Smokestack, St. Lawrence Cement Clarkson, Mississauga	Mississauga, Ontario		n/a	n/a	1956
90 tie	Smokestack, Belledune Generating Station	Belledune, New Brunswick	554 ft or 551 ft	n/a	n/a	1991
90 tie	Hullmark Centre I	Toronto, Ontario			45	2014
92 tie	Lagos at the Waterfront	Toronto, Ontario			49	2016
92 tie	Lambton Generating Station, Stack 3	Corunna, Ontario		n/a	n/a
94	Tour Avenue des Canadiens	Montreal, Quebec			50	2015-6
95	First Canadian Centre	Calgary, Alberta			41	1983
96	2 Bloor West	Toronto, Ontario	antenna		34	1974
97	Karma	Toronto, Ontario			50	2015
98	The Selby	Toronto, Ontario			50
99	Western Canada Place North	Calgary, Alberta			41	1983
100 tie	44 Charles Street West	Toronto, Ontario			51	1975
100 tie	New Port Mann Bridge, East Tower	Coquitlam & Surrey, British Columbia		n/a	n/a	2013
100 tie	New Port Mann Bridge, West Tower	Coquitlam & Surrey, British Columbia		n/a	n/a	2013
100 tie	Burano	Toronto, Ontario			50	2012
Height discrepancy between sources	Minto Midtown	Toronto, Ontario			54	2008

Timeline of the tallest structures in Canada

Timeline of the tallest freestanding structures in Canada:

Years	Name	Location	Pinnacle height	Floor count	Structure type	Image
1841–1874	Notre-Dame Basilica	Montreal, Quebec		n/a	Church bell tower
1874–1899	St. James Cathedral	Toronto, Ontario		n/a	Church bell tower
1899–1917	Old City Hall	Toronto, Ontario		n/a	City Hall clock tower
1917–1928	INCO Port Colborne Nickel Smelter Chimney #1	Port Colborne, Ontario		n/a	Smokestack
1928–1929	Tour de la Banque Royale	Montreal, Quebec		22	Building
1929	Fairmont Royal York Hotel	Toronto, Ontario		28	Building
1929–1952	INCO Nickel Smelter, Brick Chimney	Sudbury, Ontario	500 ft	n/a	Smokestack
1936–1948	INCO Copper Smelter, Stack	Sudbury, Ontario	500 ft	n/a	Smokestack
1937–1948	INCO Port Colborne Nickel Smelter Chimney #2	Port Colborne, Ontario	500 ft	n/a	Smokestack
1948–1954	Cambridge Bay LORAN Tower	Cambridge Bay, Nunavut		n/a	Lattice tower
1954–1967	INCO Copper Cliff Nickel Refinery, Stack	Sudbury, Ontario		n/a	Smokestack
1967–1972	Toronto-Dominion Centre	Toronto, Ontario		56	Skyscraper
1972–1976	Inco Superstack	Sudbury, Ontario		n/a	Smokestack
1976–present	CN Tower	Toronto, Ontario		n/a	Tower

Timeline of the tallest structures overall in Canada:

Years	Name	Location	Pinnacle height	Floor count	Structure type	Image
1841–1874	Notre-Dame Basilica	Montreal, Quebec		n/a	Church bell tower
1874–1899	St. James Cathedral	Toronto, Ontario		n/a	Church bell tower
1899–1917	Old City Hall	Toronto, Ontario		n/a	City Hall clock tower
1917–1928	INCO Port Colborne Nickel Smelter Chimney #1	Port Colborne, Ontario		n/a	Smokestack
1928–1929	Tour de la Banque Royale	Montreal, Quebec		22	Building
1929	Fairmont Royal York Hotel	Toronto, Ontario		28	Building
1929–1937	INCO Nickel Smelter, Brick Chimney	Sudbury, Ontario	500 ft	n/a	Smokestack
1936–1937	INCO Copper Smelter, Stack	Sudbury, Ontario	500 ft	n/a	Smokestack
1937–1954	CBL Hornby AM Transmitter	Toronto, Ontario	640/650 ft 198 m	n/a	Guyed mast
1954–1955	CICT-DT TV Tower 1	Calgary, Alberta	670 ft 204 m	n/a	Guyed mast
1955–1960	CKNX Television Tower	Wingham, Ontario		n/a	Guyed mast
1960–1965	CHCH Television Tower	Stoney Creek, Ontario		n/a	Guyed mast
1965–1976	Cape Race LORAN-C transmitter	Cape Race, Newfoundland		n/a	Guyed mast
1973–1976	CKX-TV Craig Television Tower	Hayfeild, Manitoba		n/a	Guyed mast
1976–present	CN Tower	Toronto, Ontario		n/a	Tower

Tallest structure by province

Ordered by tallest structure of any type ever built in said province. If that structure is not freestanding, then the tallest freestanding structure in said province is listed directly below the tallest structure in the above mentioned province.

Province	Name	Height	Structure	Image
Ontario freestanding	CN Tower	553 m	Tower
Newfoundland	Cape Race LORAN-C transmitter	411.48 m	Guyed mast
Newfoundland freestanding	Hebron Platform	278 m	Oil platform
Manitoba	CKX-TV Craig Television Tower	411.48 m	Guyed mast
Manitoba freestanding	Flin Flon Smelter chimney	251 m	Smokestack
Quebec	CBC Tower	371 m	Guyed mast
Quebec freestanding	CIBC Tower	250 m	Skyscraper and antenna
Saskatchewan	CFRE-DT Television Tower	300 m	Guyed mast
Saskatchewan freestanding	Shand Power Station, chimney	148 m	Smokestack
Alberta freestanding	Stantec Tower	250.8 m	Skyscraper
British Columbia freestanding	Living Shangri-La	201 m	Skyscraper
New Brunswick freestanding	Coleson Cove Generating Station, chimneys	183 m	Smokestack
Nova Scotia freestanding	Tufts Cove Generating Station, Trenton Generating Station & Lingan Generating Station, chimneys	152 m	Smokestack
Prince Edward Island	CFCY-TV Strathgartney Transmitter	217 m	Guyed mast

Tallest observation towers in Canada

Name	Location	Height	Year completed	Remarks	Image
CN Tower	Toronto, Ontario		1976	Tallest freestanding structure in the world 1976-2010
Calgary Tower	Calgary, Alberta		1968
Montreal Tower	Montreal, Quebec		1976	Tallest inclined structure in the world
Skylon Tower	Niagara Falls, Ontario		1965
1000 Islands Tower	Hill Island, Ontario		1965
La Cité de l'Énergie	Shawinigan, Quebec		1997
Casino Tower	Niagara Falls, Ontario		1964	formerly known as the Oneida Tower and Kodak Tower
Tower Hotel	Niagara Falls, Ontario		1962	formerly known as the Minolta Tower

Tallest guyed masts in Canada

Rank	Name	Location	Height	Year completed
1	CKX-TV Craig Television Tower	Hayfield, Manitoba		1986
2	CHCH-DT-3 Television Tower	Midland, Ontario
3	CHCH-DT Television Tower	Hamilton, Ontario		2023
4	Starbuck CBC Tower	Winnipeg, Manitoba		?
5	CIII Television Tower	Paris, Ontario		1974
6	CFPL Television Tower	London, Ontario		1961
7	CICI-TV Broadcasting Tower	Sudbury, Ontario
8	CJSD Broadcasting Tower	Shuniah, Ontario
9	CIII-TV-2/GLOBAL TV Tower	Bancroft, Ontario
10 tie	CKVR Television Tower	Barrie, Ontario		1978
10 tie	CHEX Television Tower	Peterborough, Ontario
11	CKCO-42 Television Tower	Oil Springs, Ontario		1975
12 tie	CHCH-51 Television Tower	Alvinston, Ontario		1998
12 tie	Communication Hill, CBC Tower	London, Ontario
12 tie	CFRE-DT Television Tower	Regina, Saskatchewan
13	Weyburn Television Tower	Weyburn, Saskatchewan
14	Woodstock Television Tower	Sweaburg, Ontario		1986
15	CKCO Television Tower	Baden, Ontario		2000
16	TVO London Tower	London, Ontario	902 ft.	1975
17	Cape Race LORAN-C transmitter	Cape Race, Newfoundland		1993
18	CIIT-TV Tower	Winnipeg, Manitoba
19 tie	CICT-TV Tower 1	Calgary, Alberta		1954
19 tie	CICT-TV Tower 2	Calgary, Alberta		1954
20	CKNX Television Tower	Wingham, Ontario		1955
21	SRC Kitchener Tower	St. Agatha, Ontario
22	Ryan Tower	Chelsea, Quebec		1968
23	Hwy 46, CBC Transmitter	Regina, Saskatchewan
24	Fox Harbour LORAN-C transmitter	St. Lewis, Labrador		1983

Tallest lattice towers in Canada

indicates a structure that is no longer standing.

Tower	Year	Town	Height m	Height ft	Structure Type	Remarks
Cambridge Bay LORAN Tower	1948	Cambridge Bay	189 m	620 ft	LORAN-C transmitter	demolished in August 2014
Tracy Saint Lawrence River Powerline Crossing North Tower	?	Tracy	174.6 m	573 ft	Hydro pylon	tallest set of electricity pylons in Canada
Tracy Saint Lawrence River Powerline Crossing South Tower	?	Tracy	174.6 m	573 ft	Hydro pylon	tallest set of electricity pylons in Canada
CBC Jarvis St. Tower	1952	Toronto	164.6 m	540 ft	Radio tower	demolished in 2002
Bell Canada Pharmacy Avenue Tower	1970	Toronto	160 m	525 ft	Microwave relay tower
Montreal-Varennes Crossing, North Tower		Varennes	157 m	525 ft	Hydro pylon
Montreal-Varennes Crossing, South Tower		Varennes	160 m	515 ft	Hydro pylon
CFCN TV Tower	1960	Calgary	157.6 m	517 ft	TV tower
Saint Lawrence River HVDC Powerline Crossing North Tower	1989	Deschambault-Grondines	140.2 m	460 ft	Hydro pylon	dismantled in 1992
Saint Lawrence River HVDC Powerline Crossing South Tower	1989	Deschambault-Grondines	140.2 m	460 ft	Hydro pylon	dismantled in 1992
		Brantford	138 m	453 ft	Radio tower	43°08'57.0"N 80°14'02.0"W
Montreal East Crossing, North Tower		Montreal	137 m	450 ft	Hydro pylon
Montreal East Crossing, South Tower		Montreal	137 m	450 ft	Hydro pylon
Montreal West Crossing, North Tower		Montreal	137 m	450 ft	Hydro pylon
Montreal West Crossing, South Tower		Montreal	137 m	450 ft	Hydro pylon
CFCM DT Tower	1954	Quebec City	134 m	440 ft	Radio tower	dismantled in 2022
	2018	Wheatley	132 m	433 ft	Radio tower	42°08'18.2"N 82°27'19.7"W

Tallest smokestacks/chimneys in Canada

indicates a structure that is no longer standing.
Demolished structures are not ranked but left in their previous position on the list.

Rank	Name of Facility	Location	Height in feet and meters	Construction material	Type of facility	Current status	Flue diameter	Year completed	Image
1	Inco Superstack	Sudbury, Ontario		Concrete	Smelter	Demolition to commence in 2020.	13.7	1972
2	Flin Flon Smelter, Stack	Flin Flon, Manitoba		Concrete	Smelter	Unused		1973
3	Hearn Generating Station, Stack	Toronto		Concrete	Power plant	Unused		1971
4	Wesleyville Generating Station, Stack	Wesleyville, Ontario		Concrete	Power plant	Unused		1970s
	Nanticoke Generating Station, Stack 1	Nanticoke, Ontario		Concrete	Power plant	Demolished in 2018	10.98	1972
	Nanticoke Generating Station, Stack 2	Nanticoke, Ontario		Concrete	Power plant	Demolished in 2018	10.98	1974
5 tie	Lennox Generating Station, Stack 1	Bath, Ontario		Concrete	Power plant	In use	7.3	1976
5 tie	Lennox Generating Station, Stack 2	Bath, Ontario		Concrete	Power plant	In use	7.3	1976
	Thunder Bay Generating Station, Stack	Thunder Bay, Ontario		Concrete	Power plant	Demolished in 2021	4.3	1984
7	Copper Cliff Nickel Refinery, Stack	Sudbury, Ontario		Concrete	Smelter	In use	9.1	1954
8	Ashbridges Bay Wastewater Treatment Plant, Sludge Incinerator Stack	Toronto		Concrete	Incinerator	In use		1977-79
9 tie	Coleson Cove Generating Station, FGD Stack	Lorneville, New Brunswick	600 ft	Concrete	Power plant	In use	4.87	2001
9 tie	Coleson Cove Generating Station, 1st Stack	Lorneville, New Brunswick	600 ft	Concrete	Power plant		4.87	1977
9 tie	Syncrude Mildred Lake, Main Stack	Mildred Lake, Alberta	600 ft	Concrete	Oil refinery	In use	7.9
	Lambton Generating Station, Stack 1	Corunna, Ontario	557 ft or 550 ft	Concrete	Power plant	Demolished in 2022	7.49	1969-70
	Lambton Generating Station, Stack 2	Corunna, Ontario	557 ft of 550 ft	Concrete	Power plant	Demolished in 2022	7.49	1969-70
12	Holcim Mississauga Cement Plant, Stack	Mississauga, Ontario		Concrete	Cement plant	In use	3.96	1956
13	Belledune Generating Station, Stack 1	Belledune, New Brunswick	554 ft or 551 ft	Concrete	Power plant	In use	6.86	1991
	Dalhousie Generating Station #2, FDG Stack	Dalhousie, New Brunswick	551 ft	Concrete	Power plant	Demolished in 2015	6.45	1993
	Noranda Inc. Gaspe Site, Stack	Murdochville, Quebec	550 ft	Concrete	Smelter	Demolished in 2003
	Lambton Generating Station, Stack 3	Corunna, Ontario	550 ft	Concrete	Power plant	Demolished in 2022	7.11
	Dalhousie Generating Station #1, Stack 1	Dalhousie, New Brunswick	532 ft	Concrete	Power plant	Demolished in 2015		1980
14	Battle River Generating Station, Stack C	Battle River, Alberta	528 ft	Concrete	Power plant	In use	5.791	1981
15	Sundance Power Station, Stack 1	Wabamun Lake, Alberta	512 ft	Concrete	Power plant	In use	6.401	1970-73
16 tie	Sundance Power Station, Stack 2	Wabamun Lake, Alberta	510 ft	Concrete	Power plant	In use	7.32	1976-77
16 tie	Sundance Power Station, Stack 3	Wabamun Lake, Alberta	510 ft	Concrete	Power plant	In use	7.315	1978-80
	INCO Nickel Smelter, Stack	Sudbury, Ontario	500 ft	Brick	Smelter	Dismantled in 1982	14.6	1929
18 tie	INCO Copper Smelter, Stack	Sudbury, Ontario	500 ft	Concrete	Smelter	In use - Reduced to 435 ft	13.4	1936
	INCO Nickel Smelter, Stack 2	Port Colborne, Ontario	500 ft	Concrete	Smelter	Dismantled in 1994	5.49	1937
18 tie	INCO Thompson Smelter, Stack	Thompson, Manitoba	500 ft	Concrete	Smelter	In use	9.14	1958
20 tie	Tufts Cove Generating Station, Stack 1	Tufts Cove, Nova Scotia	500 ft	Concrete	Power plant	In use	2.44	1965
20 tie	Tufts Cove Generating Station, Stack 2	Tufts Cove, Nova Scotia	500 ft	Concrete	Power plant	In use	2.44	1972
20 tie	Tufts Cove Generating Station, Stack 3	Tufts Cove, Nova Scotia	500 ft	Concrete	Power plant	In use	3	1976
20 tie	Lingan Generating Station, Stack 1	Lingan, Nova Scotia	500 ft	Concrete	Power plant	In use	4.7	1979
20 tie	Lingan Generating Station, Stack 2	Lingan, Nova Scotia	500 ft	Concrete	Power plant	In use	4.7	1979
20 tie	Trenton Generating Station, Stack 1	Trenton, Nova Scotia	500 ft	Concrete	Power plant	In use	4.7	1969
	Lakeview Generating Station, Stack 1	Mississauga, Ontario	492 ft or 479 ft	Concrete	Power plant	Demolished in 2006		1961
	Lakeview Generating Station, Stack 2	Mississauga, Ontario	492 ft or 479 ft	Concrete	Power plant	Demolished in 2006		1962
	Lakeview Generating Station, Stack 3	Mississauga, Ontario	492 ft or 479 ft	Concrete	Power plant	Demolished in 2006		1964
	Lakeview Generating Station, Stack 4	Mississauga, Ontario	492 ft or 479 ft	Concrete	Power plant	Demolished in 2006		1965
26	Shand Power Station, Stack	Estevan, Saskatchewan	486 ft	Concrete	Power plant	In use	5	1992
27	Atikokan Generating Station, Stack	Atikokan, Ontario	476 ft	Concrete	Power plant	Undergoing refurbishment	5.5	1985
28 tie	Keephills Generating Station, Stack 2	Keephills, Alberta	455 ft	Concrete	Power plant	In use	7.77
28 tie	Keephills Generating Station, Stack 1	Keephills, Alberta	455 ft	Concrete	Power Plant	In use	5.75	1983-84
30	Genesee Generating Station, Stack 2	Genesee, Alberta	453 ft	Concrete	Power plant	In use	5.74	2005
31 tie	Xstrata Nickel Smelter, Stack	Sudbury, Ontario	450 ft 137.2 m	Concrete	Smelter	Unused		1965
31 tie	Enwave Walton Street Steam Plant, Stack	Toronto	450 ft 137.2 m	Concrete	Steam Plant	In use	2.6	1971
31 tie	Commissioners Street Incinerator, Stack	Toronto	450 ft 137.2 m	Concrete	Incinerator	Unused
31 tie	Suncor Energy Oil Sands, FGD Stack	Fort McMurray, Alberta	450 ft 137.2 m	Concrete	Oil refinery	In use	7.01
31 tie	Battle River Generating Station, Stack B	Battle River, Alberta	450 ft	Concrete	Power plant	In use	6.096	1969-75
31 tie	Inco Superstack replacement 1	Sudbury, Ontario		Concrete	Smelter	In use		2020
31 tie	Inco Superstack replacement 2	Sudbury, Ontario		Concrete	Smelter	In use		2020

The Tracy Thermal Generating Station has four 449 ft stacks.

Tallest destroyed/demolished structures in Canada

There are two separate lists; one for free standing structures and one for guyed masts. This is because of incomplete information regarding the height and number of demolished guyed masts.
Tallest freestanding demolished structures:

Rank	Building	City	Height	Structure type	Build material	Year built/demolished	Recording of event	Notable for
1 tie	Smokestack 1, Nanticoke Generating Station	Nanticoke, Ontario	198 m/650 ft	Smokestack	Concrete	1972-2018		Tied for the tallest freestanding structure demolished in Canada.
1 tie	Smokestack 2, Nanticoke Generating Station	Nanticoke, Ontario	198 m/650 ft	Smokestack	Concrete	1974-2018		Tied for the tallest freestanding structure demolished in Canada.
1 tie	Smokestack, Thunder Bay Generating Station	Thunder Bay Ontario	198 m/650 ft	Smokestack	Concrete	1984-2021		Tied for the tallest freestanding structure demolished in Canada.
4	Cambridge Bay LORAN Tower	Cambridge Bay, Nunavut	189 m/620 ft	Lattice tower	Steel	1948–2014		Tallest freestanding structure in Canada from 1948 to 1954
5 tie	Lambton Generating Station, Stack 1	Corunna, Ontario	169.8 m/557 ft	Smokestack	Concrete	1970-2022
5 tie	Lambton Generating Station, Stack 2	Corunna, Ontario	169.8 m/557 ft	Smokestack	Concrete	1970-2022
7 tie	Smokestack, Noranda Inc. Gaspe Site	Murdochville, Quebec	168 m/550 ft	Smokestack	Concrete	unknown-2003		Tallest freestanding structure demolished in Quebec
7 tie	Smokestack, Dalhousie Generating Station #2	Dalhousie, New Brunswick	168 m/550 ft	Smokestack	Concrete	unknown-2015		Tallest structure demolished in New Brunswick
7 tie	Lambton Generating Station, Stack 3	Corunna, Ontario	168 m/550 ft	Smokestack	Concrete	unknown-2022
10	CBC Jarvis St. Tower	Toronto, Ontario	164 m/540 ft	Lattice tower	Steel	1952–2002		Tallest freestanding structure in Toronto from 1952 to 1967
11	Smokestack, Dalhousie Generating Station #1	Dalhousie, New Brunswick	162 m/532 ft	Smokestack	Concrete	1967-2015
12 tie	INCO Nickel Smelter, Brick Smokestack	Sudbury, Ontario	152.4 m/500 ft	Smokestack	Brick	1929–1982		Tallest freestanding structure in Canada from 1929 to 1948
12 tie	INCO - Port Colborne Nickel Smelter Smokestack #2	Port Colborne, Ontario	152.4 m/500 ft	Smokestack	Concrete	1937–1994		Equaled tallest freestanding structure in Canada from 1937 to 1948
14 tie	Lakeview Generating Station Smokestack Units 1+2	Mississauga, Ontario	150 m/493 ft	Smokestack	Concrete	1961–2006
14 tie	Lakeview Generating Station Smokestack Units 3+4	Mississauga, Ontario	150 m/493 ft	Smokestack	Concrete	1962–2006
14 tie	Lakeview Generating Station Smokestack Units 5+6	Mississauga, Ontario	150 m/493 ft	Smokestack	Concrete	1964–2006
14 tie	Lakeview Generating Station Smokestack Units 7+8	Mississauga, Ontario	150 m/493 ft	Smokestack	Concrete	1965–2006
18	Battle River Generating Station Smokestack Units 1&2	Battle River, Alberta	122 m/400 ft	Smokestack	Concrete			Tallest structure to be demolished in Alberta
19	Empire Landmark Hotel	Vancouver, British Columbia	121 m/396 ft	Building	Concrete	1973-2019		Demolished floor by floor between March 2018 and May 2019. Tallest building to be demolished in Canada. Tallest structure to be demolished in British Columbia.
20 tie	INCO - Port Colborne Nickel Smelter Smokestack #1	Port Colborne, Ontario	106.7 m/350 ft	Smokestack	Brick	1917–1966		Tallest freestanding structure in Canada from 1917 to 1928
20 tie	INCO - Orford Stack	Sudbury, Ontario	106.7 m/350 ft	Smokestack	Concrete
20 tie	Thunder Bay Generating Station, Condensing Unit Smokestack	Thunder Bay, Ontario	106.7 m or 110 m/350 ft or 361 ft	Smokestack	Concrete	1962–1998
23 tie	Bruce Nuclear Generating Station Steam Plant Smokestack	Kincardine, Ontario	100 m/328 ft	Smokestack	Concrete	unknown–2015
24	St. Lawrence Starch Plant Smokestack	Mississauga, Ontario	97.5 m/320 ft	Smokestack	Concrete	1971–1994
25 tie	Canadian Nuclear Laboratories B444 Process Water Tower	Deep River, Ontario	91.4 m/300 ft	Water Tower	Steel	1956–2017
25 tie	Oakville Assembly Paint Stack	Oakville, Ontario	91.4 m/300 ft	Smokestack	Steel	unknown–2012
na	Old Toronto Star Building	Toronto, Ontario	88 m/289 ft	Building		1927–1972		Second tallest building to be demolished in Canada. Tallest building to be demolished in Ontario.
na	Hotel Laurentien	Montreal, Quebec	78 m/255 ft	Building		1948–1978		Tallest building in Quebec to be demolished.
na	Hotel Vancouver (1916)	Vancouver, British Columbia	77 m/253 ft	Building		1916–1949

Tallest demolished guyed masts:

Rank	Building	City	Height	Year built/demolished
1	Cape Race LORAN-C transmitter	Cape Race, Newfoundland	411.48 m/1350 ft	1965–1993
2	CKX-TV Craig Television Tower	Hayfield, Manitoba	411.48 m/1350 ft	1973–1983
3	CBC Tower	Shawinigan, Quebec	371 m/1217 ft	1972–2001
4	CHCH Television Tower	Stoney Creek, Ontario		1960–2024
4	CKVR-TV	Barrie, Ontario	305 m/1000 ft	1976–1977
5	CFTO AM Transmitting Tower	Toronto, Ontario	279 m/916 ft	1960-unknown