Nm

NM, nm, and variations may refer to:

Businesses and organizations

• Northwestern Mutual
• Air Madrid (IATA airline designator NM)
• Mount Cook Airline (IATA airline designator NM)
• Manx2 (IATA airline designator NM)

Places

• The National Mall in Washington, D.C., United States
• Navi Mumbai, India
• New Mexico, a state of the United States (postal abbreviation)
• Inner Mongolia, an autonomous region of China (Guobiao abbreviation and ISO-3166-2:CN code NM)

Science and technology

Medicine

• Nemaline myopathy, a neuromuscular disorder
• Neuromelanin, a dark pigment found in the brain
• Nuclear medicine, a medical imaging modality

Units of measure

• Nanometer (nm), an SI unit of length, equal to 10⁻⁹ m (a thousand-millionth of a meter)
• Nanomolar (nM), in chemistry, one thousand-millionth molar
• Nautical mile (NM or nmi), a unit of length used for maritime and aviation purposes
• Newton metre (Nm, may also be written as N·m), a unit of torque
• Normal cubic metre (Nm³), a unit of volume (normal referring to standard temperature and pressure)
• Normalizovaný muštomer (°NM), a scale of wine must density
• Number metric a measure of linear density of fibers in textiles

Other uses in science and technology

• nm (Unix), a computer program used as an aid for debugging
• Noise margin, the amount by which a signal exceeds the minimum amount for proper operation

Other uses

• "Never mind" or "nothing much" in Internet slang
• Namma Metro, a rapid transit line in Bangalore, India
• Nao Sena Medal, a gallantry award for servicemen in the Indian Navy
• National monument
  • National monument (United States)
• National Master, Chess title