Jamestown
- Country: United States
- State: New York
- Population: 29,775 (2016)
- Latitude: 42° 5.8' N (42.097°)
- Longitude: 79° 14.1' W (-79.23533°)
- Elevation: 420 m/1,378 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: James Town