JDA

JDA may refer to:

• JDA Software, an American software and consultancy company
• JDA Dijon Basket or Jeanne d'Arc Dijon Basket, a French basketball club
• JDA Dijon Handball or Jeanne d'Arc Dijon Handball, a French handball club
• Janne Da Arc, a Japanese rock group
• Japan Defense Agency, the former name of the Japanese Ministry of Defense
• Japan Dental Association
• Jersey Democratic Alliance
• Jerusalem Declaration on Antisemitism
• Jerusalem Development Authority
• Jimmie Don Aycock, an American politician who served in the Texas House of Representatives
• Grant County Regional Airport (IATA code) in John Day, Oregon
• Joint defense agreement, an extension of attorney-client privilege
• JDA, a quarterfinalist on the twelfth season of American Idol