Water channel

Water channel may refer to:
 * Strait, a naturally formed, narrow waterway
 * Channel (geography), a landform consisting of the outline of the path of a narrow body of water
 * Canal, a man-made channel for water
 * Aquaporin, a cellular membrane structure that selectively passes water
 * An experimental tank
 * Ship model basin, used in naval architecture to study the behaviour of sea vessels
 * Water tunnel (hydrodynamic), used to study hydraulic flow
 * Wave tank, a laboratory setup for observing the behavior of surface waves (also called: wave flume)
 * Ripple tank, a shallow glass tank of water used in schools and colleges to demonstrate the basic properties of waves