Watsonville
- Country: United States
- State: California
- Population: 53,796 (2016)
- Latitude: 36° 54.6' N (36.91023°)
- Longitude: 121° 45.4' W (-121.75689°)
- Elevation: 10 m/33 ft. above sea level
- Time zone: America/Los_Angeles (UTC -08:00); DST observed (UTC -07:00)
- Alternate names: Apple City, Pajaro, Sugar City