PNS may refer to:

Medicine Peripheral nervous system Parasympathetic nervous system, rarely used, usually abbreviated as "PSNS" to avoid confusion with peripheral nervous system Peripheral nerve stimulation of the occipital nerves Paraneoplastic syndrome Pilonidal sinus Posterior nasal spine, a cephalometric landmark

Military Portsmouth Naval Shipyard, United States Pakistan Navy Ship

Science & technology Post-normal science, approach to making policy with uncertain information Process network synthesis, a process engineering tool

Transport Pensacola International Airport, IATA airport code Pensacola station (Amtrak), Amtrak station code

Other Pakistan Nuclear Society Pickleball Nova Scotia, a Canadian provincial sport authority Program on Nonviolent Sanctions, at the Center for International Affairs at Harvard University, Cambridge, Massachusetts Public News Service, an American news media company Projected National Share, British political term Perfect North Slopes, a ski resort in Lawrenceburg, Indiana