Bir or BIR may refer to:
Proper Names (Bir)
- Bir, Himachal Pradesh, town in the Indian state of Himachal Pradesh
- Bir Ma'in, a Palestinian Arab village in the District of Ramla
- Bir Ghbalou District, a district of Bouïra Province, Algeria
- Bir Moghrein Airport, an airport serving Bir Moghrein, a city in the Tiris Zemmour region of Mauritania
- Bir Salim, a Palestinian Arab village in the District of Ramla
- Bir Tawil, a small area along the border between Egypt and Sudan which is claimed by neither country
- Bir Tibetan Colony, Tibetan refugee settlement in the town of Bir in Himachal Pradesh, India
- Bir Tungal, Hill area in Himachal Pradesh, India
- Beed, Maharashtra, India, also known as Bir
- Birecik, town on the Euphrates in Turkey, also known as Bir
- Bir (Mezarkabul album)
- Bir (Hepsi album), an album released by Hepsi in Turkey in April 2005
- Rosette Bir (1926–1992), French sculptor
Acronyms (BIR)
- Bilhete de Identidade de Residente, the identity card issued to residents of the Chinese SAR of Macau
- Brainerd International Raceway, a road course, drag strip and kart track in Brainerd, Minnesota, USA
- Birmingham International Raceway, a 5/8-mile oval paved racetrack located at the Alabama State Fairgrounds
- Burma, 's IOC country code
- Bureau of Internal Revenue (Philippines), an attached agency of the Department of Finance in the Philippines
- Inhibitor of apoptosis domain, a domain commonly found in Inhibitor of Apoptosis Proteins (IAPs)
- Built-in 'robe, a British term to describe a living space with a built-in closet.