Montcalm is a census-designated place (CDP) in Mercer County, West Virginia, United States.

The first record of continuous European settlement of the Montcalm area is the 1840 census of Mercer County in what was then the state of Virginia.

He, his wife, and six children lived on the farm that included a farmhouse, likely located on the lower slopes of Tabernacle Mountain, an orchard and in what would be today's Main Street, and a field of timothy grass.

[6] The Bailey family occupied this farm until 1852 when, in preparation for a move to the West, they sold their considerable estate and all of what would one day be the village of Montcalm for $1,500 to Robert Williams, a recently arrived retired sailor from the British Navy.

[6] Williams wrote about meeting the leaders of the early Mercer County communities, a court day in Princeton, a church camp meeting in what would one day be Glenwood Park, hunting in the hills around the Bluestone, community dances and several threats to his life while homesteading on the former Bailey Farm.

Undocumented tradition states that a group of local schoolchildren, when asked to help select a new town name, selected "Montcalm" as they had just completed their study of the French and Indian War, wherein Louis-Joseph de Montcalm had been the commander of the French forces in North America, and they liked the name.

In 1924 an enormous rainstorm resulted in the collapse of the mountainside along Crane Creek, causing a flash flood to inundate Montcalm and its neighboring town of McComas.

The Bluestone River has been identified as having significant PCB contamination and high levels of fecal coliform bacteria.

According to the United States Census Bureau, the CDP has a total area of 2.7 square miles (7.1 km2), all land.