A water wheel is a machine for converting falling or flowing water into useful power.

Water wheel or Waterwheel may also refer to: Paddle steamer, or paddle wheel ship, a ship driven by a paddle wheel or wheels in the water Center-pivot irrigation, a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers Noria, a machine for lifting water into an aqueduct Saqiyah, a mechanical animal-powered water lifting device Watermill, a factory or industrial process driven by water power Waterwheel plant, common name for the plant Aldrovanda vesiculosa "Waterwheel", a composition by Ralph Towner from his 1978 album Batik The WaterWheel Foundation, a charitable organization for the band Phish

See also Water Mill (disambiguation) Wheel (disambiguation) Water (disambiguation)