NV, nv or Nv may refer to:

Science, medicine, technology and engineering
  • Nv neuron, an artificial neuron
  • Nv network, a term used in BEAM robotics
  • Nitrogen-vacancy center, a color center in diamond
  • nv (neutron flux), a unit of neutron flux equal to one thermal neutron per square centimeter per second
  • Near vision, an acronym used in eyeglass prescriptions
  • Nevada, a state in the United States of America
  • Naamloze vennootschap (NV), a Dutch term for a public limited-liability company
  • Navajo language, ISO 639-1 code nv
  • Air Central NV, Japanese airline IATA code
  • North Vista Secondary School, Singapore