Mont Mégantic (French: [mɔ̃ meʒɑ̃tik]; Abenaki: Namesokanjik[2]) is a monadnock located in Québec, Canada, about 15 km (9.3 mi) north of the border between Québec and the U.S. states of Maine and New Hampshire.

Many geologists believe that Mont Mégantic is a member of the Monteregian Hills formed by the New England hotspot, as it has the same mechanism and depth of intrusion.

An observatory Observatoire du Mont Mégantic (OMM) is located on the mountain's summit, which is the highest point in Québec accessible by road.

The mountain is in the middle of the 55 km2 (21 sq mi) Parc national du Mont-Mégantic.

[4] The annual Tour de Beauce bicycle race is routed over Mont Mégantic.