BA
- .ba
- 6-Benzylaminopurine
- Aka-Bo language
- B. A. Baracus
- BA postcode area
- BAA (disambiguation)
- Ba (Indic)
- Ba (Javanese)
- Ba (Ljig)
- Ba (Mongolic)
- Ba (Open Constituency, Fiji)
- Ba (cuneiform)
- Ba (genus)
- Ba (given name)
- Ba (pharaoh)
- Ba (soul)
- Ba (state)
- Ba (surname)
- Ba (town)
- Ba Congress
- Ba District, Fiji
- Ba F.C.
- Ba Province
- Ba River (Fiji)
- Ba River (Nanpan River)
- Ba River (Vietnam)
- Ba River (disambiguation)
- Ba game
- Ba'a
- Ba. (band)
- Bachelor of Arts
- Bah humbug (disambiguation)
- Bahrain
- Banan District, Chongqing
- Bandra railway station
- Barium
- Barye
- Bashkir language
- Basketball Australia
- Batting average
- Bazhou, Hebei
- Beerenauslese
- Bibliotheca Alexandrina
- Blue Archive
- Boeing
- Booksellers Association of the UK and Ireland
- Bosnia and Herzegovina
- Boston and Albany Railroad
- Bowls Australia
- Brewers Association
- British Academy
- British Airways
- British Association for the Advancement of Science
- British Association screw threads
- Buenos Aires
- Bundesagentur für Arbeit
- Business agent (labor)
- Business analyst
- Epsilon Serpentis
- Ford Falcon (BA)
- Kirkwall Ba Game
- Loch Bà (disambiguation)
- NZR BA class
- New York Stock Exchange
- SARS-CoV-2 Omicron variant
- Selskap med begrenset ansvar
- The Bahamas
- Ya ba
- ب