Quoins are masonry blocks at the corner of a wall.
Quoin or Du Quoin may also refer to:
Places
- Quoin Bluff, Western Australia
- Quoin Hill Airfield, Vanuatu
- Du Quoin, Illinois, USA
- Du Quoin station
- Du Quoin State Fairgrounds
- DuQuoin State Fairgrounds Racetrack
Other
- Quoin (gunnery), a wedge used in aiming a cannon
- Quoin (printing), wooden or metal wedges or cam operated devices for locking printing type into a chase
See also
- Quoin Island (disambiguation)