Achi may refer to: Achi language, a Mayan language Achi people, a Maya people in Guatemala
In places: Achí, Bolívar a municipality in Colombia Achi, Nagano, a village in Japan Achi, Jalal-Abad, a village in Kyrgyzstan Achi (Nigeria), a town in Enugu State, Nigeria Achi, Ozurgeti Municipality, a village in Georgia Achi Monastery, a medieval church near the village
In other uses: Achi (game), an abstract strategy game Australasian College of Health Informatics, a professional organisation Australian Classification of Health Interventions, the system used to code inpatient episodes of care in Australian hospitals Achi, flour produced from the seeds of Brachystegia eurycoma
People with the name Astrid Achi (1961–2023), Ecuadorian operatic soprano William Charles Achi (1858–1928), Hawaiian lawyer and politician William Charles Achi, Jr. (1889–1947), Hawaiian attorney and territorial judge Achi Brandt (born 1938), Israeli mathematician
See also Rabinal Achí, a Mayan theatrical play Advanced Host Controller Interface (AHCI)