List of plants known as buckthorn

The buckthorns are a genus of shrub or small tree in the family Rhamnaceae. The botanical name of the genus is Rhamnus

Buckthorn may also refer to:


 * Rhamnaceae, the buckthorn family
 * Frangula alnus, alder buckthorn
 * Hippophae, sea-buckthorn
 * Sideroxylon lanuginosum, wooly buckthorn