NPO may refer to:
Medicine
* ''
Nil per os'', Latin for "nothing by mouth", a medical instruction to withhold oral intake of food and fluids
* neurogenic
pulmonary oedema
Science
*
North Pacific Oscillation, a teleconnection pattern in atmospheric conditions over the North Pacific
* NP
optimization problem, an optimization problem that is NP-hard
Organisations
*
Nonprofit organization
*
National Portfolio Organisation, a UK-based culture and arts organisation receiving substantial funding from Arts Council England
* National Ports Organisation, former part of the UK
Department for Transport
The Department for Transport (DfT) is a department of His Majesty's Government responsible for the English transport network and a limited number of transport matters in Scotland, Wales and Northern Ireland that have not been devolved. The d ...
*
National Preservation Office, part of the British Library
*
Scientific Production Association (''Nauchno-Proizvodstvennoye Obyedineniye''), a form of scientific research-to-production facility in the Soviet Union and the Russian Federation.
*
Nederlandse Publieke Omroep (organization) ("Netherlands Public Broadcasting"), governing body of the Netherlands (Dutch) Public Broadcasting System
* ''Nederlands Publieke Omroepbestel'' ("
Dutch public broadcasting system"), the public broadcasting service in the Netherlands
* Netherlands Pathfinder Organisation (''Nederlandse Padvinders Organisatie''), one of the organisations that evolved into
Scouting Nederland, the national Scouting organisation
* NPO UK Ltd., a chain of stationery and book shops in Northern Ireland, now part of
Eason & Son
Other
*
Nanga Pinoh Airport
Nanga Pinoh Airport is an airport in Nanga Pinoh, the capital city of Melawi Regency
Melawi Regency is a regency of West Kalimantan province of Indonesia. It was created in 2003 from part of Sintang Regency. It covers an area of 10,640.8 km2, an ...
, by IATA code
*
Pochuri language, by ISO 639 code
{{disambiguation