| 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 |