CBN may refer to:

Broadcasting organizations

Other organizations and persons

Science, technology, and medicine

  • Chemical, biological, or nuclear (warfare or defence): types of weapon of mass destruction
    • Related terms: NRBC (nuclear, radiological, biological, and chemical); CBRN (chemical, biological, radiological, and nuclear); NBC (nuclear, biological, and chemical)
  • Cannabinol, a psychoactive cannabinoid from the Cannabis plant
  • Cubic boron nitride, a high-hardness material useful for abrasive cutting and for coatings for machine parts
  • Certified Bariatric Nurse, one of many nursing credentials and certifications