Circleville
- Country: United States
- State: Ohio
- Population: 13,902 (2016)
- Latitude: 39° 36' N (39.60062°)
- Longitude: 82° 56.8' W (-82.94601°)
- Elevation: 213 m/698 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: Round Town