Saint-Roch-de-Mékinac is a parish municipality in the Mékinac Regional County Municipality, in administrative region of Mauricie, in the province of Quebec in Canada.

Municipal territory covers both side of Saint-Maurice River, including a small portion of La Mauricie National Park. The village of Saint-Roch-de-Mékinac is located at the top of a hill on Eastern side of Saint-Maurice River.

The Saint-Roch parish was named in honour of Roch of Montpellier. The term Mékinac is associated with several homonyms of place names in the sector: Mékinac River, Saint-Joseph-de-Mékinac and Mékinac Lake.

In the 2021 Census of Population conducted by Statistics Canada, Saint-Roch-de-Mékinac had a population of 304 living in 174 of its 295 total private dwellings, a change of 0.7% from its 2016 population of 302. With a land area of 144.52 km (55.80 sq mi), it had a population density of 2.1/km (5.4/sq mi) in 2021.

Population trend

Year	Population	Variation (%)	Median age
2016	302	-31,1 %	55,4 years
2011	438	+35,2 %	55,6 years
2006	324	+5,9 %
2001	306	+2,7 %
1996	298	+2,0 %
1991	292	–
1986	–	–

Mother tongue:

• English as first language: 0%
• French as first language: 98.4%
• English and French as first language: 0%
• Other as first language: 0%

• Lake Roberge (Grandes-Piles)
• Matawin River

Media related to Saint-Roch-de-Mékinac at Wikimedia Commons