Wadena may refer to:
People
- Chip Wadena. American, Ojibwe tribal executive
Locations
;United States
- Wadena, Indiana
- Wadena, Iowa
- Wadena, Minnesota
- Wadena Township, Minnesota
;Canada
- Wadena, Saskatchewan
- Wadena (electoral district), a former provincial electoral district in Saskatchewan
Other uses
- , a steam yacht that served in the U.S. Navy in World War I