Bih or BIH may refer to:
- Bosnia and Herzegovina, ISO 3166-1 alpha-3 and UNDP country code <code>BIH</code>
- Benign intracranial hypertension, a neurological disorder
- Bounding interval hierarchy, a data structure for computer graphics
- Bureau International de l'Heure (International Time Bureau)
- An abbreviated slang form of the word "bitch"
Languages
- Rade language of Vietnam (Glottolog code: <code>bih</code>)
- Bihari language of India and Nepal (ISO 639 alpha-3 language code <code>bih</code>)
Transport
- Eastern Sierra Regional Airport, California (IATA location identifier)
- British International Helicopters, an airline based in England