| Province: | Quebec |
| Fed-Status: | defunct |
| Fed-District-Number: | 24012 |
| Fed-Created: | 1867 |
| Fed-Election-First: | 1867 |
| Fed-Election-Last: | 2011 |
| Fed-Rep: | Matthew Dubé |
| Fed-Rep-Party: | NDP |
| Demo-Pop-Ref: | [1] |
| Demo-Area-Ref: | [2] |
| Demo-Census-Date: | 2011 |
| Demo-Pop: | 129315 |
| Demo-Electors: | 93922 |
| Demo-Electors-Date: | 2011 |
| Demo-Area: | 453.24 |
| Demo-Cd: | Rouville RCM, La Vallée-du-Richelieu RCM |
| Demo-Csd: | Belœil, Carignan, Chambly, Marieville, McMasterville, Mont-Saint-Hilaire, Otterburn Park, Richelieu, Saint-Basile-le-Grand, Saint-Mathias-sur-Richelieu |
Chambly—Borduas (also previously known as Chambly and Chambly—Verchères) was a federal electoral district in the province of Quebec, Canada, that was represented in the House of Commons of Canada from 1867 to 1935, and from 1968 to 2015. Created by the British North America Act of 1867, its name was changed in 1893 to "Chambly—Verchères". In 1933, it was amalgamated into the Chambly—Rouville and Richelieu—Verchères electoral districts. The district was re-created in 1966 from Chambly—Rouville, Châteauguay—Huntingdon—Laprairie, and Richelieu—Verchères. Its name was changed in 2003 to "Chambly—Borduas".[3] In 2015, most of the district became part of Beloeil—Chambly, while small parts of it joined Montarville and Pierre-Boucher—Les Patriotes—Verchères.
It initially comprised the Parishes of Boucherville, Longueuil, St. Bruno and Chambly.
In 1892, it was redefined to consist of the town of Longueuil, the villages of Verchères, Boucherville, Chambly Basin, Chambly Canton and Varennes, the municipality of St. Lambert, and the parishes of Boucherville, Chambly, Longueuil, St. Basile le Grand, St. Bruno, St. Hubert, Varennes, Ste. Julie, Verchères, Contrecoeur, Ste. Théodosie, St. Antoine, St. Marc and Beloeil.
In 1924, it was redefined to consist of the Counties of Chambly and Verchères including the Cities of Longueuil and St. Lambert.
When it was recreated in 1966, it was defined to consist of:
In 1976, it was redefined to consist of:
In 1987, it was redefined to consist of:
In 1996, it was redefined to consist of:
This riding is located southwest of Montreal in the Quebec region of Montérégie. The neighbouring ridings are Brossard—La Prairie, Saint-Bruno—Saint-Hubert, Verchères—Les Patriotes, Saint-Hyacinthe—Bagot, Shefford, and Saint-Jean.
This riding has elected the following members of Parliament:
Note: Conservative vote is compared to the total of the Canadian Alliance vote and Progressive Conservative vote in 2000 election.
See main article: 1990 Chambly by-election.