Ellison Shoji Onizuka was an American astronaut, engineer, and U.S. Air Force flight test engineer from Kealakekua, Hawaii, who successfully flew into space with the Space Shuttle Discovery on STS-51-C. He died in the destruction of the Space Shuttle Challenger, on which he was serving as Mission Specialist for mission STS-51-L. Onizuka was the first Asian American and the first person of Japanese origin to reach space.

Kealakekua is a census-designated place (CDP) in Hawaiʻi County, Hawaiʻi, United States. The population was 2,019 at the 2010 census, up from 1,645 at the 2000 census.