Merritt Island
- Country: United States
- State: Florida
- Population: 34,743 (2010)
- Latitude: 28° 18.6' N (28.30924°)
- Longitude: 80° 40.6' W (-80.67596°)
- Elevation: 0 m/1 ft. above sea level
- Time zone: America/New_York (UTC -05:00); DST observed (UTC -04:00)
- Alternate names: Merritt Island CDP