A nunchaku is an Okinawan martial arts weapon.
Nunchaku or Nunchuk may also refer to:
Nunchaku (Isabelle), a tool of the Isabelle proof assistant Nunchuk (G.I. Joe), a fictional character in the G.I. Joe franchise Nunchuk (controller), a Wii Remote expansion
See also "Nunchucks", a song by Jay Chou from the 2001 album Fantasy "Nunchucks", a song by Doja Cat from the 2014 EP Purrr!