La Montagne was a political group during the French Revolution, whose members called the Montagnards sat on the highest benches in the National Assembly.

They were the most radical group and opposed the Girondists. The term, which was first used during a session of the Legislative Assembly, came into general use in 1793. Led by Maximilien Robespierre, the Montagnards unleashed the Reign of Terror in 1793. By the summer of 1793, two minority groups who were referred to as the Mountain and the Girondin, divided the National Convention. The Mountain was composed mainly of members of the middle class, but represented the constituencies of Paris. As such, the Mountain was sensitive to the motivations of the city and responded strongly to demands from the working class sans-culottes. The Mountaineers had little understanding of the daily life and needs of the people in the cities and towns beyond Paris. Although they attempted some rural land reform, most of it was never enacted and they generally focused on the needs of the urban poor over that of rural France. The Mountain operated on the belief that what was best for Paris would be best for all of France.