| Acronym | Definition |
|---|
| NMO | Neuromyelitis Optica |
| NMO | Nursing and Midwifery Order (UK) |
| NMO | Normal Moveout |
| NMO | Network Management Option |
| NMO | Network Mode of Operation |
| NMO | Network Management Office |
| NMO | Normal Manual Operation |
| NMO | Nederlandse Moslim Omroep (Dutch: Dutch Muslim Broadcasting) |
| NMO | New Motorola (antenna mounting) |
| NMO | National Member Organisation |
| NMO | NASA Management Office (JPL) |
| NMO | Network Maintenance Operative |
| NMO | National Marketing Online (Florida) |
| NMO | National Marketing Organization |
| NMO | Non-Magnetic Option (antenna) |
| NMO | National Measurement Office (UK) |
| NMO | Network Mode of Operation (GSM) |
| NMO | Number of Methods Overridden |
| NMO | nonmachinable outside (US Postal Service; manually handled US postal mail) |
| NMO | Network Management Operations |
| NMO | Non-Molestation Order |
| NMO | New Management Orientation |