Christmasberry (Christmas berry, Christmas-berry) can refer to any one of several shrubs or small trees, as well as their colorful fruit:
Ardisia crenata, native to Asia and AustraliaCrossopetalum ilicifoliumLycium carolinianum (Carolina Desert-thorn, family Solanaceae), a boxthorn native to subtropical North AmericaHeteromeles arbutifolia (Toyon or California Holly, family Rosaceae), native to southern California and northern MexicoPasserina ericoides, a South African shrubPhotinia villosaRuscus aculeatus cultivar 'Christmas Berry'Schinus terebinthifolius (Brazilian Pepper, family Anacardiaceae), native to South America but introduced and invasive in many tropical and subtropical areas