Wind-up
Wind-up or windup may refer to:
- Windup, a pitching position in baseball
 - "Wind Up", a 1971 song from Aqualung (Jethro Tull album)
 - "Wind Up", a 1997 song by Foo Fighters from The Colour and the Shape
 - "Wind Up", a 2001 song by Thursday from Full Collapse
 - Windup radio, a clockwork radio powered by human muscle action
 - Wind-up Records, a New York music label
 - Wind-up toy, a toy powered by a wound clockwork motor
 - Winding-up, liquidation of a company
 - Integral windup, an error condition in a proportional–integral–derivative controller
 - Pain wind-up, an increase in pain intensity caused by repeated stimulation
 - "She's a Windup", a 1977 song by Dr. Feelgood
 - The Wind-Up Bird Chronicle, a 1994 Japanese novel by Haruki Murakami