Broadwater may refer to:
In people and things
- Charles Arthur Broadwater (1840 - 1892), American businessman and banker
- Chris Broadwater (born 1972), Louisiana politician
- W. Craig Broadwater (1950 - 2006), a United States federal judge
- USS Broadwater (APA-139)
In America
- Broadwater Energy - a proposed liquid natural gas terminal proposed for Long Island Sound
- Broadwater County, Montana
- Broadwater, Nebraska
- Broadwater Development LLC, a casino holding company
In England
- Broadwater Farm, Tottenham, London
- Broadwater Farm riot, 1985 race riots
- Broadwater, West Sussex
- Broadwater, Hertfordshire
- River Broadwater, Berkshire
- Broadwater School, Godalming
- Broadwater Green, London
- The Broad Water, an alternative name for Tixall Wide, Staffordshire
In Wales
- Broad Water, a salt water lagoon
In Australia
- Electoral district of Broadwater, Queensland
- Gold Coast Broadwater
- Broadwater National Park
- Broadwater, New South Wales