Brome-Missisquoi () is a regional county municipality in the Estrie region of Quebec, Canada. It lies in the Eastern Townships area. The seat is Cowansville. In 2021, it was transferred to the Estrie region from Montérégie.
In Parliament it is covered by the BromeâÂÂMissisquoi federal electoral district.
In the 1980s, the RCM was formed from municipalities of historic Brome and Missisquoi counties. On January 1, 2010, the city of Bromont moved from La Haute-Yamaska Regional County Municipality to Brome-Missisquoi.
There are 21 subdivisions within the RCM:
Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:
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