Le Fjord-du-Saguenay (French pronunciation: [lə fjɔʁ dy saɡnɛ], The Fjord of the Saguenay [river]) is a regional county municipality in the Saguenay-Lac-Saint-Jean region of Quebec, Canada.

It has a land area of 40,232.41 km2 (15,533.82 sq mi) and a Canada 2011 Census population of 20,465 inhabitants.

[3] Le Fjord-du-Saguenay is one of the few regional county municipalities in Quebec that does not constitute its own census division; instead, it is grouped with Saguenay as the single census division of Le Saguenay-et-son-Fjord; the territory of the census division corresponds exactly to that of the old pre-2002 Le Fjord-du-Saguenay regional county municipality.

In 2002, the cities of Chicoutimi, Jonquière, La Baie and the surrounding area amalgamated and became the City of Saguenay at which point they separated from the RCM; the post-2002 Le Fjord-du-Saguenay consists of the remainder of the original.

After the departure of Saguenay, its largest community is the municipality of Saint-Honoré, with a 2011 census population of 5257 inhabitants.