The Chilean Swallow (Tachycineta meyeni) is a species of bird in the Hirundinidae family. It breeds in Argentina, Chile and the Falkland Islands with southern birds migrating north as far as Bolivia, Brazil, Paraguay, Uruguay and possibly Peru. Its natural habitats are temperate grassland, pastureland, near water, in human areas, and heavily degraded former forest.
It is 11-13 centimeters (4.5-5 in) in length. It is glossy blue-black above and white below with a white rump. It is similar to the White-rumped Swallow but lacks the white forehead (not always reliable) of that species and has bluer upperparts and grey underwing-coverts.