Matawinie () is a regional county municipality in the region of Lanaudière in southwestern Quebec, Canada. Its seat is Rawdon. The population according to the 2021 Canadian Census was 55,500.
There are 27 subdivisions within the RCM:
French and Atikamekw are the main languages.
Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:
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