Le Fjord-du-Saguenay is a regional county municipality in the Saguenay-Lac-Saint-Jean region of Quebec, Canada. Its seat is Saint-Honoré, which is also its most populous municipality.
It is named for the fjord part of the Saguenay River, protruding out of the Saint Lawrence River into the southern section of the RCM. It is located adjacent to the city of Saguenay and practically surrounds it. It has a land area of 40,232.41 km² and a Canada 2011 Census population of 20,465 inhabitants.
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.