Wapato can mean:
* Any of various plants in the genus ''
Sagittaria
''Sagittaria'' is a genus of about 303. Sagittaria Linnaeus ''
Wapato, Washington, a town named after the plant in the State of Washington in the United States
* USS ''Wapato'' (YTB-788), a United States Navy tug in service from 1966 to 1996
*
Sauvie Island
Sauvie Island, in the U.S. state of Oregon, originally Wapato Island or Wappatoo Island, is the largest island along the Columbia River, at , and one of the largest river islands in the United States. It lies approximately ten miles northwest o ...
, which was originally called Wapato Island
* Wapato Lake, a former lake in what's now Washington and Yamhill counties
* Wapato Corrections Facility, a built but never opened jail in Multnomah County.
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