Wiggler may refer to:
- Wiggler (JTAG), a parallel port JTAG tool from the Macraigor Systems LLC.
- Wiggler, the caterpillar-like creature in the Mario series of games.
- Wiggler (synchrotron), an insertion device for a synchrotron.
- Wiggler (tool), a centering tool in metalworking.
- Mosquito larvae.
- Bradley Wiggins