PCN or pcn may refer to: Arts and entertainment Pennsylvania Cable Network, non-profit cable television network of Pennsylvania, US Personal Computer News, a defunct computer magazine PCN (band), a Mexican metal band Organisations Partido de Conciliación Nacional, former name of the National Coalition political party in El Salvador Partidul Comuniştilor (Nepecerişti), the Communist Party in Romania Science and technology Process control network, a communications network that transmits instructions and data between control and measurement units and SCADA equipment Penicillin (PCN) Pavement classification number, a code classifying types of surface at airports Polychlorinated naphthalene, an organic pollutant Potato cyst nematode, an agricultural pest Program Composition Notation, a language for parallel programming Polycycnis (Pcn), a genus of orchid Personal communications network, mobile telephone system, Europe Other uses Pecked curvilinear nucleated, in archaeology, a form of prehistoric rock carving Penalty Charge Notice, a Fixed Penalty Notice issued by parking attendants and other civil enforcement officers Putnam City North High School Post Christum natum (modern Latin: p.C.n., "After the Birth of Christ") Personnel Certification in Non-Destructive Testing, maintained by the BINDT in the UK Product change notification, document issued by a manufacturers to inform customers about a product change Paisley Canal railway station (Station code), Paisley, Scotland