The Eurasian wigeon or European wigeon (Mareca penelope), also known as the widgeon or wigeon, is one of three extant species of wigeon in the dabbling duck genus Mareca. It is common and widespread within its Palearctic range.
This dabbling duck is 42–52 cm (17–20 in) long with a 71–80 cm (28–31 in) wingspan, and a weight of 500–1,073 g (1–2 lb). The breeding male has grey flanks and back, with a black rear end, a dark green speculum and a brilliant white patch on upper wings, visible in flight or at rest. It has a pink breast, white belly, and a chestnut head with a creamy crown. In non-breeding (eclipse) plumage, the drake looks more like the female. The female is light brown, with plumage similar to that of a female American wigeon. It can be distinguished from most other ducks, apart from American wigeon, by its shape. However, that species has a paler head and white axillaries on the underwings. The female can be a rufous morph with a redder head, and a gray morph with a grayer head.