USS Pegasus (PHM-1)  was the lead ship of her class of hydrofoils operated by the United States Navy.  Pegasus class vessels were designed for high speed and mobility, and carried a powerful armament.

Pegasus is one of the best known creatures in Greek mythology.  He is a winged divine stallion usually depicted as pure white in color. He was captured by the Greek hero Bellerophon near the fountain Peirene with the help of Athena and Poseidon. Pegasus allows the hero to ride him to defeat a monster, the Chimera, before realizing many other exploits.