Look up quatrefoil in Wiktionary, the free dictionary.
A quatrefoil (four leaf) is a decorative element of four partially overlapping circles.
Quatrefoil may also refer to:
- Quatrefoil: A Modern Novel, a 1950 book by James Barr
- Quatrefoil Library, in Minneapolis, Minnesota, U.S.
- Quatrefoil reentry, a type of cardiac arrhythmia