BB1 may refer to:
- BB1, a postcode district in the BB postcode area
- USS Indiana (BB-1), a United States battleship which served from 1895 until 1919
- Budd BB-1 Pioneer, an experimental flying boat produced by the Budd Company in the 1930s
- Peugeot BB1, an electric concept car introduced at Frankfurt Motor Show in 2009
- Big Brother 1, a television programme in various versions
- BB-1, the prototype name of the Soviet World War II light bomber, the Sukhoi Su-2
- Neuromedin B receptor or BB1, a bombesin receptor, previously known as Neuromedin B receptor (NMBR)
- Baahubali: The Beginning, an Indian film directed by S.S. Rajamouli
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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- BB1 - brand of leather handbags & belts