The cliff swallow or American cliff swallow (Petrochelidon pyrrhonota) is a member of the passerine bird family Hirundinidae, the swallows and martins. The generic name Petrochelidon is derived from the Ancient Greek meaning "stone" and ??????? "swallow", and the specific name pyrrhonota comes from purrhos meaning "flame-coloured" and -notos "-backed".

Cliff swallows are extremely social songbirds