HNO
Appearance
HNO may refer to:
- Croatian National Committee (Hrvatski Narodni Odbor), an organization founded by the Ustaša Branimir Jelić
- Croatian National Resistance (Hrvatski narodni otpor), an organization founded by the Ustaša Maks Luburić
- Hockey Northwestern Ontario
- Nitroxyl
- hno, ISO 639-3 code for the Northern Hindko language of Pakistan