NPO

Not to be confused with: NP0 (ends in a zero), a capacitor dielectric material.

NPO may refer to:

• Non-profit organization
• Nil per os, Latin for "nothing by mouth", a medical instruction to withhold oral intake of food and fluids from a patient
• NP optimization problem, optimization problems that are NP-hard
• North Pacific Oscillation, an atmospheric teleconnection pattern

Britain

• National Preservation Office, part of the British Library
• NPO UK Ltd., a company which had stationery and book shops around Northern Ireland, bought by and rebranded Eason & Son N.I. Ltd.

Netherlands

• Netherlands Public Broadcasting (Dutch: Nederlandse Publieke Omroep)
• Netherlands Pathfinder Organisation (Dutch: Nederlandse Padvinders Organisatie), one of the organisations that evolved into Scouting Nederland, the national Scouting organisation of the Netherlands

Pakistan

• Shehri Ijtamai Taraqiati Council - SHATAC (Public organisation)

Russia

• Nauchno-Proizvodstvennoye Obyedineniye (Научно-производственное объединение), Russian for "Scientific and Production Establishment", often found in the names of successors to the Experimental Design Bureaux (OKB) of Communist times

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