Kalāheo High School is a public high school in Kailua CDP,[3] City and County of Honolulu, Hawaiʻi, United States, on the island of Oʻahu.

[4] The school mascot is the Mustang, and the school colors are blue and orange.

The campus has the glazed ceramic tile sculpture Spirit of the Koʻolaus[5] by Claude Horan.

Listed alphabetically by last name (year of graduation): Kalaheo High School competes in a variety of sports.

They compete in the Oahu Interscholastic Association.