Canton-Tremblay, Administrative sector in Saint-Honoré, Canada.

Canton-Tremblay is a sector in the northeast of Saguenay, Quebec, bordered by Saint-Honoré to the north, Saint-Fulgence to the east, the Saguenay River and Chicoutimi-Nord to the south, and the Rivière aux Vases and Shipshaw to the east. Part of the Saguenay Fjord lies within its territory.

Surveyor Louis Legendre began delimiting the township in 1843, and the Hudson's Bay Company signed the first registered land patents on 17 November 1847. The township was erected on 7 October 1848 with an area of 43,400 acres. It counted 422 inhabitants and 2,030 arpents under cultivation by 1851, and became a municipality in 1855 with Ambroise Gagnon as first mayor.

In February 1915 agronomist Alphonse Désilets and professor Georges Bouchard visited the Saguenay–Lac-Saint-Jean region and proposed creating Cercles de fermières; on 13 February the board of the Chicoutimi circle was formed. The artist collective Interaction Qui dedicated its Tacon Site des Fibres Naturelles to Canton-Tremblay, making it custodian of a marker tied to regional textile artisans' traditions.

The area is easily accessible from connected towns like Jonquière, Saint-Fulgence, and Chicoutimi, which offer shops and local services. Most locations are best visited by car, and accommodations and dining options are available in the larger neighboring municipalities.

Boundaries shifted in 2002 when the southern portion merged into Saguenay city while the northern part joined Saint-Honoré municipality. This restructuring significantly reshaped the administrative and political landscape of the entire area.