Swallowtail
# Swallowtail

Swallowtail may refer to:

* Swallowtail catastrophe or swallowtail surface, a singularity occurring in the part of mathematics called catastrophe theory
* Swallow-tail coat, a formal tailcoat worn traditionally as part of the white tie dress code
* Swallowtail butterfly, large colorful butterflies from the family Papilionidae
* Swallowtail (film), 1996 film directed by Shunji Iwai
* Swallowtail (flag), a term in vexillology
* Swallowtail joint in woodworking, see Dovetail joint
* The Swallow's Tail, a painting by Salvador Dalí, inspired by the swallowtail catastrophe
* Swallowtail, a butler café in Tokyo, Japan
* Swallowtail, a Wolf Alice song from their debut album My Love Is Cool
