Depa - Dire
- DEPA
- DEPACTV
- DEPAIR
- department
- department head
- department instrument equipment reserve
- Department of Aeronautical and Engineering Research
- Department of Army Secure Facsimile
- Department of Communications
- Department of Defense
- Department of Defense Activity Address Code
- Department of Defense Activity Address Directory
- Department of Defense Activity Address File
- Department of Defense Aircraft Ground Fire Suppression and Rescue Systems Office
- Department of Defense ammunition code
- Department of Defense assigned contractor
- Department of Defense authorized data list
- Department of Defense Central Automated Personnel System
- Department of Defense civil defense films
- Department of Defense Claimant Program
- Department of Defense Computer Institute
- Department of Defense consolidated list of principal military items
- Department of Defense Damage Assessment Center
- Department of Defense Directive
- Department of Defense emergency plans
- Department of Defense exercise planning
- Department of Defense Explosives Safety Board
- Department of Defense Foreign Disclosure Coordinating Office
- Department of Defense Guide to the Performance Evaluation
- Department of Defense Handbook
- Department of Defense High School Newspaper Service
- Department of Defense Household Goods Commercial Storage Office
- Department of Defense Household Goods Field Office
- Department of Defense Identification Badge
- Department of Defense identification code
- Department of Defense Index of Specifications and Standards
- Department of Defense industrial equipment reserve
- Department of Defense Industrial Security Letter
- Department of Defense Instruction
- Department of Defense Intelligence Information System