JA, Ja, jA, or ja may refer to: Arts and entertainment. Ja (novel), original German title of the novel Yes, by Thomas Bernhard. JA (TV series), a Danish television show. Businesses and organizations. Jamiat Ahle Hadith a political party in Pakistan. Japan Agricultural Cooperatives, in Japan. Junior Achievement, a non-profit youth organization founded in 1919. B&H Airlines (IATA airline designator JA), a Bosnian airline. Yugoslav Action (Serbo-Croatian: Jugoslovenska akcija), a Yugoslav nationalist organization active between 1930 and 1935. Linguistics.
https://en.wikipedia.org/wiki/JA