- DC3 stands for Douglas DC3 (airliner)
- DC3 stands for Device Control Three (or XOFF)
- DC3 stands for Deep Convective Clouds and Chemistry (National Center for Atmospheric Research; Boulder, CO)
- DC3 stands for Destiny’s Child
- DC3 stands for DoD (Department of Defense) Cyber Crime Center (US DoD)
- DC3 stands for Damage Controlman Third Class (Naval Rating)
- DC3 stands for Discovery Channel Cranium Covers
DC3