Japan in Nato country code

Jane Austen

Abbreviation of Jamaica

Jefferson Airplane, an american Psychedelic-Rock Band

See you later or So... (as in "So, let's get going"), in Japanese

Ja Rule (An American rapper)

Jagged Alliance

Jessica Alba

Jane's Addiction

Judge Advocate

B&H Airlines IATA airline designator

Jasmonic acid

Justice of the Court of Appeals

JA, or Japanese Central Union of Agricultural Cooperatives, an organization in Japan

Jonathan Avildsen aka JA ONE

John Alexander (tennis player)

Junior Achievement

JA, a Graffiti artist

Jackass (for example, the television series)

Japanese language (ISO 639-1 alpha-2)

Ja is an old name for the Jade inlet on the north coast of Germany

And, in Finnish, Estonian and Northern Sami

I, in Russian, Serbian, Croatian, Polish, Slovak and Ukrainian

Yes, in Danish, Norwegian, Dutch, Afrikaans, German, Swedish, Slovene and Faroese