Freeport
- Country: United States
- State: Illinois
- Population: 24,392 (2016)
- Latitude: 42° 17.8' N (42.29669°)
- Longitude: 89° 37.3' W (-89.62123°)
- Elevation: 237 m/776 ft. above sea level
- Time zone: America/Chicago (UTC -06:00); DST observed (UTC -05:00)