Old River may refer to:
- Old River (Belize)
- Old River (Tasmania), Australia
- The Old River, in the Australian state of Victoria
In the United States:
- Old River (Clay County, Arkansas) a lake in Clay County, Arkansas
- Old River (Cross County, Arkansas) a lake in Cross County, Arkansas
- Old River (California)
- Old River (Florida)
- Old River (New Hampshire)
; Places
- Old River, California
- Old River-Winfree in Chambers and Liberty Counties, Texas
; Other
- Old River Control Structure, connecting the Red River to the Atchafalaya and Mississippi Rivers
See also
- New River (disambiguation)