Achi
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