The northern lapwing (Vanellus vanellus), also known as the peewit or pewit, tuit or tewit, green plover, or (in Ireland and Great Britain) pyewipe or just lapwing, is a bird in the lapwing subfamily. It is common through temperate Eurosiberia.

The northern lapwing was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Tringa vanellus. The species is now placed with the other lapwings in the genus Vanellus that was introduced by the French zoologist Mathurin Jacques Brisson in 1760. The scientific name Vanellus is Medieval Latin for the northern lapwing and derives from vannus, a winnowing fan. The species is monotypic: no subspecies are recognised.

The name lapwing has been variously attributed to the "lapping" sound its wings make in flight, from the irregular progress in flight due to its large wings (the Oxford English Dictionary derives this from an Old English word meaning "to totter"), or from its habit of drawing potential predators away from its nest by trailing a wing as if broken. The names peewit, pewit, tuit or tew-it are onomatopoeic and refer to the bird's characteristic call