This article is about the boat propulsion implement, etc. For the computer/video game controller, see paddle (game controller).

A paddle is a tool for mixing or pushing against liquids, typically in order to propel a boat. Paddles for use in canoes consist of a wooden, fibreglass or metal rod (the shaft) with a handle on one end and a rigid sheet (the blade) on the other end. Paddles for use in kayaks are longer, with a blade on each end, and usually no handles.

The paddle is held with two hands, some distance apart from each other. For normal use, it is drawn through the water in a backwards direction. The two blades of a kayak paddle are dipped alternately on either side of the kayak. A paddle is distinguished from an oar in that the paddle is held in the user's hands and completely supported by the paddler, whereas an oar is primarily supported by the boat.

A paddle may also be another device of roughly similar shape and materials:

• a racquet in table tennis
• a wooden instrument of corporal punishment consisting of a handle and a flat surface, traditionally used in the United States to inflict spankings in schools and households, see paddle (spanking)