Claret cup may refer to:
Plants Echinocereus triglochidiatus, a cactus species that goes by the common name claret-cup cactus Echinocereus coccineus, sometimes called Mexican claret cup Magnolia sprengeri, sometimes called claret-cup magnolia Claret cup irises, cultivars of Iris sibirica Claret cup fuchsia, a cultivated variety with large semidouble flowers and a trailing habit
Drinking Claret cup (beverage), a wine cocktail popular in the 19th century a cup of claret, a kind of Bordeaux wine, sometimes served in specialized claret glasses