JDA
JDA stands for:
- Yearbook of the German Nobility
- Japan Domestic Airlines , former Japanese domestic airline
- John Day State Airport , Grant County Regional Airport / Ogilvie Field in John Day , Oregon, USA according to the IATA code
- Joint Deployment Agency
- Joint Development Agreement , an agreement for development cooperation between two companies
- JDA Software , global American software manufacturer
jda stands for:
- Jad (language) (ISO-639-3 code), Tibetan language in Uttarakhand and Himachal Pradesh, India
