Tachycineta is a genus of birds in the swallow family. Its members are restricted to the Americas.
These are slender swallows with forked tails. Most species have a metallic green back, green or blue head, and metallic blue or unglossed brown wings. All have pure white underparts, and some species have a white rump.
Tachycineta swallows are mostly at least partially migratory. All the species use natural or disused cavities for nest sites.
It includes the Tree Swallow Tachycineta bicolor, Violet-green Swallow Tachycineta thalassina and the Bahama Swallow Tachycineta cyaneoviridis.
