Brca or BRCA may refer to:
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Brca (Bar Municipality), a village in Macedonia
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''BRCA'' mutation, mutations in two genes which produce a hereditary breast-ovarian cancer syndrome
**''
BRCA1
Breast cancer type 1 susceptibility protein is a protein that in humans is encoded by the ''BRCA1'' () gene. Orthologs are common in other vertebrate species, whereas invertebrate genomes may encode a more distantly related gene. ''BRCA1'' is a ...
'', the first of these genes to be discovered
**''
BRCA2
''BRCA2'' and BRCA2 () are human genes and their protein products, respectively. The official symbol (BRCA2, italic for the gene, nonitalic for the protein) and the official name (originally breast cancer 2; currently BRCA2, DNA repair associate ...
'', the second of these genes to be discovered
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British Radio Car Association, a British radio controlled car racing organisation
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Brotherhood Railway Carmen of America, a defunct American trade union
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Bureau Central de Renseignements et d'Action, the Free French intelligence agency during World War II
{{disambiguation