Whitethorn or white thorn may refer to: Plants Acacia constricta, known as whitethorn acacia, a shrub in the family Fabaceae Bursaria spinosa, a small shrub in the family Pittosporaceae Ceanothus leucodermis, a shrub in the family Rhamnaceae Crataegus monogyna, the common hawthorn, a small tree in the family Rosaceae Crataegus punctata Other Whitethorn, California, United States Whitethorn (Blacksburg, Virginia), U.S., a historic house Whitethorn Woods, 2006 novel by Maeve Binchy See also Whyte Thorne