- Year: 1995
- Platform: DOS
- Publisher: Astron Publishing, Inc.
- Developer: Millennium Interactive Ltd.
- Theme: Cyberpunk / Dark Sci-Fi
Defcon 5 (aka 데프콘５, デフコン5) is a video game published in 1995 on DOS by GT Interactive Software Corp., Nova Spring, Astron Publishing, Inc.. It’s an action and strategy game, set in a cyberpunk / dark sci-fi and sci-fi / futuristic themes, and was also released on 3DO and SEGA Saturn.