MKO
- Davis Field (Oklahoma)
- East Coast Naval Base
- Hungarian Alliance (Slovak political party)
- Instructional scaffolding
- List of Amtrak stations
- List of defunct airlines of Taiwan
- List of defunct airlines of the United Kingdom
- List of mineral symbols
- MK0 (disambiguation)
- Markona railway station
- Mary-Kate Olsen
- Mauna Kea Observatories
- Mingang Doso language
- Mkrtich Arzumanyan
- Moshood Kashimawo Olawale Abiola
- Mujahedin-e Khalq Organization
- Münchener Kammerorchester
- Potawatomi
- Printed Circuit Board Assembly
- Tribal council (Canada)