Berberis vulgaris (European barberry)/( Jaundice berry)/( Ambarbaris)/(Barberry) is a shrub in the family Berberidaceae, native to central and southern Europe, northwest Africa and western Asia; it is also naturalised in northern Europe, including the British Isles and Scandinavia, and North America. Although not naturalised, in rural New Zealand it has been widely cultivated as a hedge on farms. It is cultivated for its fruits, primarily in Iran.

It is a deciduous shrub growing up to 4 m high. The leaves are small oval, 2–5 cm long and 1–2 cm broad, with a serrated margin; they are borne in clusters of 2-5 together, subtended by a three-branched spine 3–8 mm long. The flowers are yellow, 4–6 mm across, produced on 3–6 cm long panicles in late spring. The fruit is an oblong red berry 7–10 mm long and 3–5 mm broad, ripening in late summer or autumn; they are edible but very sour, and rich in Vitamin C.

The berries are edible and rich in vitamin C, though with a very sharp flavour; the thorny shrubs make harvesting them difficult, so in most places, they are not widely consumed. They are an important food for many small birds, which disperse the seeds in their droppings.