Flat River
Flat River is the name of the following rivers:
In the United States:
- Flat River (Big River), the river in Missouri
- Flat River ( Loggy Bayou ) River in Bossier Parish, Louisiana
- Flat River ( De Soto Parish, Louisiana), River in De Soto Parish, Louisiana
- Flat River ( Grand River ) River in Kent County, Michigan
- Flat River ( Wood River ) River in Washington County, Rhode Iceland
In Canada:
- Flat River (South Nahanni River), in the Northwest Territories
Flat River may refer to:
- Flat River, Missouri City, now part of Park Hills (Missouri )
- Disambiguation