Bath
- Country: United States
- State: Maine
- Population: 8,303 (2016)
- Latitude: 43° 54.6' N (43.91064°)
- Longitude: 69° 49.2' W (-69.8206°)
- Elevation: 20 m/66 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: Long Reach, Reach, Sagadahoc, The City of Ships