| PSN | Package Sequence Number 
| Others |
| PSN | Packet Sequence Number
| Others |
| PSN | Packet Switch Node
| Others |
| PSN | Packet Switched Network
| Others |
| PSN | Packet Switching Network
| Others |
| PSN | Packet Switching Node
| Others |
| PSN | Pakistan Society of Neurosurgeons
| Others |
| PSN | Parent Security Number
| Others |
| PSN | Partido Socialista de Navarra
| Others |
| PSN | Passive Safety Network
| Others |
| PSN | Patient Safety News (FDA)
| Others |
| PSN | Patrol Services North
| Others |
| PSN | Payment Service Network
| Others |
| PSN | Peer Support Network
| Others |
| PSN | Penicillin Streptomycin Neomycin
| Others |
| PSN | Perl speaks NONMEM
| Others |
| PSN | Personal Serial Number
| Others |
| PSN | Personal Subscription Number
| Others |
| PSN | Pharmaceutical Society of Nigeria
| Others |
| PSN | Phase Shift Network
| Others |
| PSN | Picture Services Network
| Others |
| PSN | Piss Sh*t Network
| Others |
| PSN | Plastic Services Network
| Others |
| PSN | Play Station Network
| Others |
| PSN | Playstation Network
| Others |
| PSN | Playstation Now
| Others |
| PSN | Polyester Steel Nylon
| Others |
| PSN | Pontiac Southern Nationals
| Others |
| PSN | Postal Stock Number
| Others |
| PSN | Postal System Number
| Others |
| PSN | Pre-Sidedress Nitrate
| Others |
| PSN | Preferred Status Number
| Others |
| PSN | Presentation file (Sound Script)
| Others |
| PSN | Preservation of Strong Normalization
| Others |
| PSN | Private Switched Network
| Others |
| PSN | Pro Sound News magazine
| Others |
| PSN | Problem Solving in Nursing
| Others |
| PSN | Process Serial Number
| Others |
| PSN | Processor Serial Number
| Others |
| PSN | Produce Safety Network
| Others |
| PSN | Production Service Network
| Others |
| PSN | Progressive States Network
| Others |
| PSN | Project Safe Neighborhoods
| Others |
| PSN | Project Studio Network
| Others |
| PSN | Proposal Solicitation Notice
| Others |
| PSN | Proton Satria Neo
| Others |
| PSN | Provider Service Network
| Others |
| PSN | Provider Service Networks
| Others |
| PSN | Public Safety News
| Others |
| PSN | Public Seismic Network
| Others |
| PSN | Public Service Network
| Others |
| PSN | Public Services Network
| Others |
| PSN | Public Switch Network
| Others |
| PSN | Public Switched Network
| Others |
| PSN | Purge Sequence Number
| Others |
| PSN | The Psychic Stars Network
| Others |