| Acronym | Definition |
|---|
| CMAO➣Central Mine Action Office (est. 1994; UN) |
| CMAO➣Contract Management Assistance Officer (NASA) |
| CMAO➣Court-Martial Appointing Order |
| CMAO➣Consejo Mundial de Artes Y Oficios (Spanish: World Council of Arts and Crafts) |
| CMAO➣Country Music Association of Ontario (Canada) |
| CMAO➣Caudal Medial Accessory Olive |
| CMAO➣Calculated Maximum Acid Output |