| Acronym | Definition |
|---|
| CHO | Chinese Hamster Ovary |
| CHO | Carbohydrate (chemical formula Carbon Hydrogen Oxygen) |
| CHO | Chemical Hygiene Officer |
| CHO | Chief Happiness Officer (work happiness expert) |
| CHO | Community Health Outreach (various locations) |
| CHO | Chief Health Officer (corporate title) |
| CHO | Community Hospital of Ottawa (Illinois) |
| CHO | Continuous Hours of Operation (software testing) |
| CHO | Community Health Organization |
| CHO | Community Health Officer |
| CHO | Cambodian Hope Organization (religious non-profit) |
| CHO | Cameron Highlanders of Ottawa (Ottawa, Canada) |
| CHO | CMOS Harmonic Oscillator |
| CHO | Chief Household Officer |
| CHO | Charlottesville, VA, USA - Charlottesville/Albemarle (Airport Code) |
| CHO | Centre Hospitalier d'Orsay (French: Orsay Hospital Center; Orsay, France) |
| CHO | Children's Hospital of Oklahoma |
| CHO | Canadian Hemophilia Outcomes |
| CHO | Club Hématopoïèse et Oncogenèse (French: Hematopoiesis and Oncogenesis Club; French Society of Hematology) |
| CHO | Certified Hotel Owner (certification) |
| CHO | Chief Humanitarian Officer |
| CHO | Chuan Hup Offshore |