Dorion was a provincial electoral district in the province of Quebec, Canada.

It corresponded to the Villeray neighbourhood in Montreal.

It was created for the 1966 election from parts of Montréal-Outremont, Montréal–Jeanne-Mance and Montréal-Laurier electoral districts. Its final election was in 1989. It disappeared in the 1994 election and its successor electoral district was Laurier-Dorion.

A Montréal-Dorion district also existed from 1912 to 1939.

The electoral district was named in honour of a prime minister of the United Province of Canada, Antoine-Aimé Dorion.

Legislature	Years	Member		Party
Riding created from Montréal-Outremont, Montréal–Jeanne-Mance and Montréal-Laurier
28th	1966–1968		François Aquin	Liberal
	1969–1970		Mario Beaulieu	Union Nationale
29th	1970–1973		Alfred Bossé	Liberal
30th	1973–1976
31st	1976–1981		Lise Payette	Parti Québécois
32nd	1981–1985		Huguette Lachapelle
33rd	1985–1989		Violette Trépanier	Liberal
34th	1989–1994
Dissolved into Laurier-Dorion

v t e 1989 Quebec general election
Party	Candidate	Votes	%
	Liberal	Violette Trépanier	11,632	51.00
	Parti Québécois	Joseph Facal	9,425	41.33
	Green	Agnès Grimaud	878	3.85
	New Democratic	Gaétan Nadeau	437	1.92
	Lemon	Pierre Corbeil	297	1.30
	Marxist–Leninist	Francine Tremblay	137	0.60
Total valid votes			22,806	100.00
Rejected and declined votes			421
Turnout			23,227	76.03
Electors on the lists			30,551
Source: Official Results, Le Directeur général des élections du Québec.

v t e 1985 Quebec general election
Party	Candidate	Votes	%
	Liberal	Violette Trépanier	12,724	51.71
	Parti Québécois	Huguette Lachapelle	10,226	41.56
	New Democratic	Paul Comtois	653	2.65
	Progressive Conservative	Robert Zambito	290	1.18
	Parti indépendantiste	Normand Lacasse	268	1.09
	Humanist	Alain Despaties	155	0.63
	Communist	Line Chabot	76	0.31
	United Social Credit	Réal Bastien	66	0.27
	Commonwealth of Canada	M. Luisa Grau	56	0.23
	Christian Socialist	André St-Arnaud	55	0.22
	N/A (Workers)	Mario Caluori	36	0.15
Total valid votes			24,605
Rejected and declined votes			453
Turnout			25,058	74.58
Electors on the lists			33,601
Source: Official Results, Le Directeur général des élections du Québec.

v t e 1981 Quebec general election
Party	Candidate	Votes	%
	Parti Québécois	Huguette Lachapelle	14,551	51.54
	Liberal	Henri-François Gautrin	12,657	44.83
	Union Nationale	François Lefebvre	524	1.86
	Workers Communist	Suzanne Barbeau Foisy	161	0.57
	Workers	Gilles Frenière	114	0.40
	Marxist–Leninist	Ginette Boutet	88	0.31
	Independent	Raymond Beaudoin	74	0.26
	United Social Credit	Fernand Bélisle	66	0.23
Total valid votes			28,235	100.00
Rejected and declined votes			666
Turnout			28,901	82.58
Electors on the lists			34,997
Source: Official Results, Le Directeur général des élections du Québec.

• Election results (National Assembly)
• Election results (QuebecPolitique.com)