Lexington
- Country: United States
- State: Massachusetts
- Population: 31,394 (2010)
- Latitude: 42° 26.8' N (42.44732°)
- Longitude: 71° 13.5' W (-71.2245°)
- Elevation: 65 m/213 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: Lexington CDP, Cambridge Farms, Lexington Centre, Lexington Village