Double Data Rate 
Data Delivery Ratio 
Data Discrepancy Report 
Dance Dance Revolution 
Data Display Room 
Detailed Design Review 
Drug Demand Reduction 
Design Development Record 
Detail Design Review 
Deutsches Demokratisches Republik 
Dial on Demand Routing 
Dial-on-Demand Routing 
DIGITAL DATA RECORDER 
Disengagement Denial Ratio 
Dynamic Desktop Router 
Daily Demand Rate 
Daily Deposit Report 
Damage-to-Dose Ratio 
Data Dependent Routing 
Data Description Record 
Data descriptive record 
Data Descriptor Record 
Data Display and Review 
D-dependent rickets 
decontamination, decommissioning, demo… 
Decoy Discrimination Radar 
deficiency and disposition report 
Definitive design review 
Delinquent Delivery Report 
Demilitarisation, demobilisation and r…