NCP may refer to:

• Novel Coronavirus Pneumonia (a temporary name for COVID-19), an outbreak that was officially identified in late 2019.
• HIV-1 nucleocapsid protein 7 (NCp7), a target of zinc finger inhibitors
• Nucleosome core particle, part of DNA packaging in the nucleosome
• NCP, a protein in involved in chloroplast biogenesis
• National Centre for Physics, a physics research laboratory and facility in Pakistan

• IBM Network Control Program, a program run on IBM programmable communications controllers
• NCP Engineering, a company that produces software for secure data communication
• NetWare Core Protocol, a network protocol used in Novell NetWare
• Network Control Protocol (ARPANET), the original protocol suite of the ARPANET
• Network Control Program (ARPANET), the software in the hosts which implemented that protocol suite
• Network Control Protocol, a protocol that runs atop the Point-to-Point Protocol
• New Cross Pacific Cable System, a submarine cable system in the North Pacific Ocean
• Nonlinear complementarity problem, a kind of a mathematics problem

• National Centrist Party, a Libyan political party
• National Christian Party, a former Romanian political party
• National Citizen Party, a Bangladeshi political party
• National Coalition Party, a Finnish political party
• National Congress (Sudan) or National Congress Party, a Sudanese political party
• Nationalist Congress Party, an Indian political party
• Nepal Communist Party
• New Communist Party of Britain

• National Car Parks, a private car park operator in United Kingdom
• North celestial pole, an imaginary point in the sky in the Northern Hemisphere
• National climate projections, climate (change) projections relevant to (and typically produced by) an individual country
• National Consumer Panel, a market research company
• National Contingency Plan, the United States federal government's blueprint for responding to oil spills and hazardous substance releases
• North Central Positronics, a fictional company in The Dark Tower series
• Northside College Preparatory High School, a high-school in Chicago
• IATA code for Naval Air Station Cubi Point
• National Check Professional, an expert in check processing rules and regulations, as designated by the Electronic Check Clearing House Organization
• Noncustodial parent, a parent who does not have custody of their child.
• New customer pricing, in call centers