Beauharnois-Salaberry (French pronunciation: [boaʁnwa salabɛʁi]) is a regional county municipality in the Montérégie region of Quebec, Canada.

[2] The RCM was formed by combining the historic counties of Beauharnois and Châteauguay.

There are 7 subdivisions within the RCM:[2]

Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:[9]

Protected areas: