| Acronym | Definition |
|---|
| CHIS➣Chiapas (Estado de México) |
| CHIS➣California Health Interview Survey (University of California, Los Angeles; Center for Health Policy Research; Los Angeles, CA) |
| CHIS➣Channel Islands National Park (US National Park Service) |
| CHIS➣Covert Human Intelligence Source (Crown Prosecution Service; UK) |
| CHIS➣Consumer Health Information Service (Toronto, Ontario, Canada) |
| CHIS➣Community Health Information System |