The treeswifts (Hemiprocnidaeare) a family of four species of aerial birds, closely related to the true swifts. They are distributed from India and South East Asia through Indonesia to New Guinea and the Solomon Islands.

They visibly differ from the other swifts in matters of plumage, which is softer, and they have crests or other facial ornaments, and long forked tails. All species feed on insects.