Harlowton
- Country: United States
- State: Montana
- Population: 984 (2016)
- Latitude: 46° 26.1' N (46.43551°)
- Longitude: 109° 50.1' W (-109.83435°)
- Elevation: 1,279 m/4,197 ft. above sea level
- Time zone: America/Denver (UTC -07:00); DST observed (UTC -06:00)
- Alternate names: Harlow