NCD Is A Three-Letter Abbreviation Which May Mean:
- National Creative Director
- National Capital District (Papua New Guinea)
- National Church Development
- National Clandestine Service
- National Cleavage Day
- National coverage determinations, which help the Centers for Medicare and Medicaid Services define medical necessity for Medicare beneficiaries nation-wide.
- National Council on Disability
- National Center for Digitization (Serbia)
- Natural Church Development
- Naval Combat Dress, a uniform of the Canadian Forces
- Naval Construction Division (U.S. Navy)
- Negotiable certificate of deposit
- Nemine Contradicente for "with no one speaking against," used in committees as N.C.D. for unanimous consent
- Nero CoverDesigner Document, a proprietary file format used to store custom cover elements created with the Nero CoverDesigner application
- Network Computing Devices, a company
- Non-Claret Disjunctional, a type of the molecular motor in the kinesin-14 family.
- Non-communicable disease
- Non-convergent discourse
- Non Convertible Debentures, an unsecured loan to a corporation that cannot be converted to equity
- Non Crystalline Diffraction
- Normalized Compression Distance
- New Christian Democrats (Nieuwe Christen-Democraten), a former Belgian political party, now part of the Flemish Liberals and Democrats
- National Corndog Day, an informal American holiday
- Nerd Compulsive Disorder
- Norton Change Directory
- Noncommunicable Disease, 64th World Health Assembly (WHA), 2011.
- Nearly completely decomposable, a property of some Markov chains