Hiapo (c. November 13, 1983 – February 25, 2004) was a male Atlantic bottlenose dolphin, who along with a companion female dolphin named Elele, as well as tankmates Phoenix and Akeakamai, were the subjects of Louis Herman's animal language studies at the Kewalo Basin Marine Mammal Laboratory in Honolulu, Hawaii, USA. The most well known paper is the original work described in Herman, Richards, & Wolz (1984). Hiapo was also the subject of many other scientific studies of dolphin cognition and sensory abilities.