Breakwater may refer to:
- Breakwater (structure), a structure for protecting a beach or harbour
- Breakwater, Victoria, a suburb of Geelong, Victoria, Australia
- Breakwater (band), a funk and soul band from the 1970s
- Breakwater (album), a 1988 album by Lennie Gallant
- Breakwater Islands, Nunavut, Canada
- Breakwater School, a Portland, Maine, pre-school and elementary school founded in 1956
- USS Breakwater (SP-681), a United States Navy patrol vessel, minesweeper, and tug in commission from 1917 to 1920