The Indo Defence Expo & Forum is a biennial event hosted by the Ministry of Defence in Jakarta, Indonesia, since 2004. It serves as a tri-service defense technology and sales exhibition, bringing together international defense and security equipment manufacturers. The expo, held concurrently with Indo Aerospace Expo & Forum and Indo Marine Expo & Forum, is the largest defense exhibition in Southeast Asia and is considered one of the best in the world.

The event showcases the latest military, aviation, and nautical defense and security technologies, serving as a comprehensive meeting point for key decision-makers, defense authorities, and companies globally.