Algoma—Manitoulin—Kapuskasing is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 2004. The area was represented by the riding of Algoma from 1867 to 1904 and from 1968 to 1996 and then by Algoma—Manitoulin from 1996 to 2004.

According to the 2021 Canadian census

• Languages: 68.7% English, 23.6% French, 1.3% Ojibway, 1.1% German
• Religions: 65.2% Christian (40.5% Catholic, 6.6% United Church, 4.5% Anglican, 1.1% Baptist, 1.1% Pentecostal, 11.4% Other), 1.7% Indigenous Spirituality, 31.7% None
• Median income: $37,200 (2020)
• Average income: $46,520 (2020)

Panethnic groups in Algoma—Manitoulin—Kapuskasing (2011−2021)

Panethnic group	2021		2016		2011
	Pop.	%	Pop.	%	Pop.	%
European	61,675	77.98%	62,255	79.6%	64,285	81.48%
Indigenous	15,895	20.1%	14,990	19.17%	13,775	17.46%
African	410	0.52%	270	0.35%	275	0.35%
South Asian	350	0.44%	145	0.19%	105	0.13%
East Asian	300	0.38%	270	0.35%	200	0.25%
Southeast Asian	215	0.27%	85	0.11%	115	0.15%
Latin American	55	0.07%	60	0.08%	80	0.1%
Middle Eastern	50	0.06%	70	0.09%	0	0%
Other/multiracial	155	0.2%	60	0.08%	50	0.06%
Total responses	79,095	98.49%	78,205	98.39%	78,900	98.87%
Total population	80,310	100%	79,483	100%	79,801	100%
Notes: Totals greater than 100% due to multiple origin responses. Demographics based on 2012 Canadian federal electoral redistribution riding boundaries.

The district includes the eastern, northern and central parts of Algoma District, the extreme northwestern part and extreme southwestern part of Sudbury District, the extreme southeastern part of Thunder Bay District, all of Manitoulin District, and western Cochrane District along the Trans Canada highway. Large communities include Elliot Lake, Kapuskasing, Hearst, Espanola, Wawa, Manitouwadge, Blind River, Sables-Spanish Rivers, Chapleau, and Northeastern Manitoulin and the Islands. The area is 103,364 km.

The electoral district was created in 2003. 71.7% of the population of the riding came from Algoma—Manitoulin, and 28.3% from Timmins-James Bay.

Algoma was created in the British North America Act and consisted of the Provisional Judicial District of Algoma District. In 1882, the district consisted of the area between the Provisional Thunder Bay District and the Province of Manitoba. In 1892, it consisted of all areas of Ontario west of the Nipissing electoral district, and also included Manitoulin Island and the islands around it. The district was abolished in 1903 when it was redistributed into Algoma East and Algoma West ridings.

A new Algoma district was created from Algoma East and Algoma West in 1966. It consisted of most of Algoma District except the extreme north and northwestern portions, and Sault Ste. Marie. It also included Manitoulin Island, nearby islands, and the southwestern corner of Sudbury. In 1976, the district was expanded to the north, and to include the suburbs of Sault Ste. Marie, Whitefish River Indian Reserve, and more of the southwestern part of Sudbury District.

In 1987, it was expanded to include part of the city of Sault Ste. Marie, the part of Rankin Indian Reserve within city limits, more of western Sudbury District, all of Manitoulin District, and much of southcentral Sudbury District. There were also some boundary changes in the north part of the Algoma district.

In 1996, the district consisted of all of Algoma District except Sault Ste. Marie, the northwestern corner and the southwestern corner of Sudbury District, Manitoulin District, and the southeastern corner of Thunder Bay District.

In 1997, the name of the district was changed to Algoma—Manitoulin.

Most of the riding was redistributed in 2003 into Algoma—Manitoulin—Kapuskasing, with small parts going to Nickel Belt and Sault Ste. Marie ridings.

This riding gained territory from Sault Ste. Marie and Nickel Belt during the 2012 electoral redistribution.

This riding has elected the following members of Parliament:

Parliament	Years	Member		Party
Algoma
1st	1867–1871		Wemyss Mackenzie Simpson	Conservative
	1871–1872		Frederick William Cumberland
2nd	1872–1874		John Beverley Robinson
3rd	1874–1878		Edward Borron	Liberal
4th	1878–1882		Simon James Dawson	Conservative
5th	1882–1887
6th	1887–1891
7th	1891–1896		George Hugh Macdonell
8th	1896–1900		Albert Dyment	Liberal
9th	1900–1904
Riding dissolved into Algoma East and Algoma West
Algoma Riding re-created from Algoma East and Algoma West
28th	1968–1972		Maurice Foster	Liberal
29th	1972–1974
30th	1974–1979
31st	1979–1980
32nd	1980–1984
33rd	1984–1988
34th	1988–1993
35th	1993–1997		Brent St. Denis
Algoma—Manitoulin
36th	1997–2000		Brent St. Denis	Liberal
37th	2000–2004
Algoma—Manitoulin—Kapuskasing
38th	2004–2006		Brent St. Denis	Liberal
39th	2006–2008
40th	2008–2011		Carol Hughes	New Democratic
41st	2011–2015
42nd	2015–2019
43rd	2019–2021
44th	2021–present
Riding dissolved into Kapuskasing—Timmins—Mushkegowuk, Sault Ste. Marie—Algoma, Sudbury East—Manitoulin—Nickel Belt, and Thunder Bay—Superior North