Témiscamingue () is a regional county municipality in the Abitibi-Témiscamingue region of western Quebec, Canada. The county seat is Ville-Marie.
Though Témiscamingue borders Pontiac Regional County Municipality to the south, it is not practical to travel between the two within Quebec without taking a major detour north towards Quebec Route 117. The shorter route is to cross into Ontario at Notre-Dame-du-Nord or Témiscaming and travel south on Highway 11, then east on Highway 17, before crossing back at L'Isle-aux-Allumettes.
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: