Willow River may refer to:

• Willow River (British Columbia), tributary of the Fraser River originating in the Cariboo goldfields, Canada
• Willow River, British Columbia, a community, Canada

• Willow River, Minnesota, a community at the confluence of the Kettle and Willow Rivers, Pine County, U.S.
• Willow River (Kettle River tributary), in Pine County, Minnesota, U.S.
• Willow River (Little Fork River tributary), in Minnesota, U.S.
• Willow River (Mississippi River tributary), in Minnesota, U.S.
• Willow River (St. Croix River tributary), in St. Croix County, Wisconsin, U.S.
• Willow River (Tomahawk River tributary), in Oneida County, Wisconsin, U.S.

• Big Willow River, a tributary of James Bay in Ontario, Canada
• Little Willow River (Mississippi River tributary), in Aitkin County, Minnesota, U.S.
• Hudson, Wisconsin, a city formerly known as "Willow River"
• Willow River State Park, a state park in St. Croix County, Wisconsin, U.S.

This disambiguation page lists articles associated with the title Willow River.
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