Altamont is a town in Duchesne County, Utah, United States.

The town was settled in the 1930s as a central location for a new area high school.

According to the United States Census Bureau, the town has a total area of 0.2 square mile (0.4 km2), all land.

The racial makeup of the town was 96% White, 2% Native American, and 1.3% from Hispanic or Latino.

Altamont competes as a 1A school and has local rivalries with Duchesne and Tabiona.