| PMO | A Power Milk Operation 
| Others |
| PMO | Falcone-Borsellino Airport
| Others |
| PMO | Pacific Mambo Orchestra
| Others |
| PMO | Packing Many Ovules
| Others |
| PMO | Painful Meaningless Overhead
| Others |
| PMO | Pakistan Missile Organization
| Others |
| PMO | Pandemic Management Order
| Others |
| PMO | Pandoli Railway Station
| Others |
| PMO | Parents Morning Out
| Others |
| PMO | Participating Member Organization
| Others |
| PMO | Passing Muscat Outbound
| Others |
| PMO | Pasteurized Milk Ordinance
| Others |
| PMO | Peace Making Office
| Others |
| PMO | Performance Motor Oil
| Others |
| PMO | Periodic Mesoporous Organosilicas
| Others |
| PMO | Phosphorodiamidate Morpholino Oligomer
| Others |
| PMO | Pine Mountain Observatory
| Others |
| PMO | Piss Me Off
| Others |
| PMO | Planetary-Mass Object
| Others |
| PMO | Policy Management Object
| Others |
| PMO | Polish Military Organisation
| Others |
| PMO | PolyMethylene Oxide
| Others |
| PMO | Porn Masturbation Orgasm
| Others |
| PMO | Port Maintenance Supervisor
| Others |
| PMO | Portmaster Office Router
| Others |
| PMO | Ports and Maritime Organization of Iran
| Industry, Logistics, Organization, Transport, Water Transport |
| PMO | Post Modern Outreach
| Others |
| PMO | Premier Oil plc
| Others |
| PMO | Premium Motor Oil
| Others |
| PMO | Present Mode of Operation
| Others |
| PMO | Pressure Maximum Operating
| Others |
| PMO | Preventive Maintenance Optimization
| Others |
| PMO | Price Momentum Oscillator
| Others |
| PMO | Primary Milking Operations
| Others |
| PMO | Prime Minister Office
| Others |
| PMO | Prime Minister's Office
| Others |
| PMO | Prime Ministers Office
| Others |
| PMO | Principal Medical Officer
| Others |
| PMO | Priority Material Office
| Others |
| PMO | Private Mark Out
| Others |
| PMO | Production Management Office(R)
| Others |
| PMO | Program Management Office
| Others |
| PMO | Program Management Offices
| Others |
| PMO | Project Management and Operations
| Others |
| PMO | Project Management Office
| Others |
| PMO | Project Management Officer
| Others |
| PMO | Project Management Offices
| Others |
| PMO | Project Management Operations
| Others |
| PMO | Project Management Oversight
| Others |
| PMO | Project Managment Office
| Others |
| PMO | Property Management Office
| Others |
| PMO | Prospective Management Overseas
| Others |
| PMO | Provost Marshal Office
| Others |
| PMO | Public Mutual Online
| Others |
| PMO | Purdue Music Organization
| Others |
| PMO | Purdue Musical Organizations
| Others |
| PMO | Purple Mountain Observatory
| Others |
| PMO | Putnam Municipal Opportunities
| Others |