CBA

CBA may refer to:
== Maths and science ==
* Casei Bifidus Acidophilus, a bacterium
* Colicin, activity protein
* Complete Boolean algebra, a concept from mathematics
* Cytometric Bead Array, a bead-based immunoassay
* Cell Based Assay, also a kind of immunoassay
* 4-Carboxybenzaldehyde, a byproduct in the industrial production of terephthalic acid
* Congenital bronchial atresia, a rare congenital abnormality
== Organizations ==
=== Broadcasting ===
* Central Broadcasting Alliance, an alliance of broadcasters across the continents of Andoladia and Eurapolia
** CBA Song Festival, a yearly music contest held between the members of the Central Broadcasting Alliance
== Other uses ==
* Chromatic button accordion
* Cost–benefit analysis