CNM can refer to:
- Cavern City Air Terminal, Carlsbad, New Mexico, US, IATA code
- Central New Mexico Community College, Albuquerque, New Mexico, US
- Centronuclear myopathy, congenital muscle disorder.
- Certified Nurse Midwife
- Cheltenham Spa railway station - National Rail code is CNM
- The Chuj language - ISO 639-3 code is cnm
- Chetna Natya Manch — the "cultural troupe" of the Communist Party of India (Maoist).