Don Valley East (French: Don Valley-Est) is a federal electoral district in Ontario, Canada that covers the northeast section of the North York part of Toronto. The federal riding was created in 1976 from parts of Willowdale, York East, York North, and York—Scarborough ridings.

It is represented in the House of Commons of Canada by Liberal MP Michael Coteau. He was formerly the Ontario Liberal MPP for the contiguous provincial riding.

This riding is located in the eastern part of the North York district in Toronto. It contains the neighbourhoods of Flemingdon Park, Don Mills, Graydon Hall, Parkwoods and Victoria Village.

For most of its existence, this riding has alternated between voting Liberal and Conservative. During the Brian Mulroney years, it elected Progressive Conservatives but it switched to Liberal when Jean Chrétien came to power. In 2011, when Stephen Harper's Conservative Party won a majority government, the riding switched back to Conservative.

In 2018 the Don Valley East Collective was created to organize & inform residents around important issues that impact our daily lives; this group spans all of the neighbourhoods within Don Valley East.

Don Valley East was one of the seven federal ridings for which the election results were being challenged in court because of automated phone calls ("robocalls") that voters say tried to misdirect them to wrong polling stations. According to the challenger's claims, phone calls claiming to be on behalf of Elections Canada directed some voters to the wrong polling station during the election. It is illegal under the Elections Act to impersonate Elections Canada and to interfere with somebody's right to vote.

In October 2012, however, Don Valley East was dropped from the legal case after it was found that Leeanne Bielli, the voter who brought the challenge forward, did not live in the riding. Bielli therefore became ineligible to challenge the result. Joe Daniel remained the Member of Parliament for Don Valley East until the 2015 federal election.

As of changes made in 2003, the riding boundaries consisted of:

• on the east by Victoria Park Avenue,
• on the north by the hydroelectric transmission line situated north of Apache Trail running west from Victoria Park Avenue to Highway No. 404, then along that highway to Finch Avenue East, and west along Finch Avenue to Leslie Street;
• on the west by Leslie Street as far as the Canadian National Railway, then by the railway to Don Mills Road, then south along Don Mills Road to the Canadian Pacific Railway, then northeast along the railway to the Don River East Branch, and south along the Don River to just west of Sunrise Avenue, and
• on the south by Sunrise Avenue.

This riding underwent significant changes during the 2012 electoral redistribution. It lost almost half of its territory to Don Valley North and gained a significant portion of Don Valley West.

• 
  1976 to 1987
• 
  1987 to 1996
• 
  1996 to 2003
• 
  2003 to 2015

According to the 2021 Canadian census

Languages: 44.0% English, 3.6% Tagalog, 3.5% Arabic, 3.1% Mandarin, 2.7% Urdu, 2.3% Spanish, 2.2% Cantonese, 2.1% Greek, 2.0% Dari, 2.0% Gujarati, 1.6% Persian, 1.3% Romanian, 1.2% Tamil, 1.2% Bengali, 1.1% Hindi, 1.0% Korean

Religions: 47.9% Christian (19.9% Catholic, 7.7% Christian Orthodox, 2.4% Anglican, 2.0% United Church, 1.2% Presbyterian, 1.1% Pentecostal, 13.6% Other), 22.3% Muslim, 4.5% Hindu, 1.2% Buddhist, 22.1% None

Median income: $36,400 (2020)

Average income: $50,680 (2020)

Panethnic groups in Don Valley East (2011−2021)

Panethnic group	2021		2016		2011
	Pop.	%	Pop.	%	Pop.	%
European	34,255	36.31%	38,125	40.92%	39,930	43.31%
South Asian	17,285	18.32%	15,890	17.05%	15,140	16.42%
African	9,880	10.47%	8,665	9.3%	8,390	9.1%
East Asian	9,280	9.84%	8,880	9.53%	9,520	10.32%
Middle Eastern	9,120	9.67%	8,480	9.1%	7,555	8.19%
Southeast Asian	7,985	8.46%	7,510	8.06%	6,510	7.06%
Latin American	2,290	2.43%	2,195	2.36%	2,200	2.39%
Indigenous	555	0.59%	660	0.71%	735	0.8%
Other/multiracial	3,695	3.92%	2,760	2.96%	2,225	2.41%
Total responses	94,335	99.26%	93,170	98.51%	92,205	99.14%
Total population	95,039	100%	94,579	100%	93,007	100%
Notes: Totals greater than 100% due to multiple origin responses. Demographics based on 2012 Canadian federal electoral redistribution riding boundaries.

This riding has elected the following members of Parliament:

Parliament	Years	Member		Party
Don Valley East Riding created from Willowdale, York East, York North and York—Scarborough
31st	1979–1980		Sam Wakim	Progressive Conservative
32nd	1980–1984		David Smith	Liberal
33rd	1984–1988		Bill Attewell	Progressive Conservative
34th	1988–1993		Alan Redway
35th	1993–1997		David Collenette	Liberal
36th	1997–2000
37th	2000–2004
38th	2004–2006		Yasmin Ratansi
39th	2006–2008
40th	2008–2011
41st	2011–2015		Joe Daniel	Conservative
42nd	2015–2019		Yasmin Ratansi	Liberal
43rd	2019–2020
	2020–2021			Independent
44th	2021–present		Michael Coteau	Liberal
Riding dissolved into Don Valley North, Don Valley West, and Scarborough Centre—Don Valley East