| Acronym | Definition |
|---|
| PSN➣Playstation Network (gaming) |
| PSN➣Position |
| PSN➣Project Safe Neighborhoods |
| PSN➣Product Serial Number |
| PSN➣Poison |
| PSN➣Processor Serial Number (Intel Pentium III) |
| PSN➣Packet Switched Network |
| PSN➣Piano Sanitario Nazionale (Italian: National Health Plan) |
| PSN➣Public Services Network (UK) |
| PSN➣Proper Shipping Name (hazardous materials) |
| PSN➣Picture Services Network |
| PSN➣Packet Sequence Number |
| PSN➣Packet Switch Node |
| PSN➣Packet Switching Network |
| PSN➣Processor Serial Number |
| PSN➣Personal Serial Number |
| PSN➣Panasonic System Networks Co., Ltd. (est. 2010) |
| PSN➣Production Services Network (gas/oil services company; Aberdeen, Scotland) |
| PSN➣Public Switched Network |
| PSN➣Provider Service Network |
| PSN➣Private Sector Network (business network) |
| PSN➣Pharmaceutical Society of Namibia |
| PSN➣Parti Socialiste Neuchâtelois (Swiss socialist party) |
| PSN➣Partido de la Sociedad Nacionalista (Spanish: Party of the Nationalist Society) |
| PSN➣Progressive States Network (politics) |
| PSN➣Patient Safety News (US FDA) |
| PSN➣Panamerican Sports Network |
| PSN➣Power Sports Network (Wisconsin) |
| PSN➣People Search News |
| PSN➣Peripheral Sensory Neuron (cells) |
| PSN➣Presacral Neurectomy |
| PSN➣Packet Switching Node |
| PSN➣Pancreatitis Supporters Network (United Kingdom) |
| PSN➣Park Slope Neighbors (advocacy; New York) |
| PSN➣Provider Sponsored Network |
| PSN➣Partido da Solidariedade Nacional |
| PSN➣Pobalscoil Neasáin (Irish school) |
| PSN➣Partido Solidarista Nacional (Brazil political party) |
| PSN➣Professional Services Network, Inc (Silver Spring, MD) |
| PSN➣Processing Sequence Number |
| PSN➣Promote Safe Navigation (US NOAA) |
| PSN➣Personal Service Network |
| PSN➣Polygonal Switching Network |
| PSN➣Primary Service Node |
| PSN➣Pending Shipping Notice (shipping) |
| PSN➣Pre-Solicitation Notice (US Department of Interior; National Park Service) |
| PSN➣Parallel Staging Network (global ballistic missile defense) |
| PSN➣Personal Software Network |
| PSN➣Promotion Sequence Number |
| PSN➣Plansoft Network |
| PSN➣Position Switched Network |
| PSN➣Probability, Stress, Number of Life Cycles |
| PSN➣Property Sheet Notification (Microsoft Windows programming) |