MCHO
| Acronym | Definition |
|---|---|
| MCHO | Massive Compact Halo Object |
| MCHO | McLoughlin House National Historic Site (US National Park Service) |
| MCHO | Mobile Controlled Hand-Off/Hand-Over |
| MCHO | Microchip Technology |
| MCHO | McHenry County Hearing Officer (Illinois) |
| MCHO | Malaysia Chemistry Olympiad |