Winder may refer to:
Winder (device), a device for transferring energy into a mechanical storage such as mainsprings or the weights of a longcase clock. Its supply may be the hand—most familiarly so—or an electric motor
Winding machine, a machine for wrapping string, twine, cord, thread, yarn, rope, wire, ribbon, tape, etc. onto a spool, bobbin, reel, etc.
winder (step), one in a series of wedge shaped steps in a stairway, used to make a 90 degree turn
A hoist (mining) used in underground
Winder (surname), a surname - article includes list of persons bearing the name
A Southerner's word for window