| Acronym | Definition |
|---|
| RDD➣Redding (Amtrak station code; Redding, CA) |
| RDD➣RDF (Resource Description Framework) Declarative Description |
| RDD➣Requirements and Design Document (project process) |
| RDD➣Regime Disciplinar Diferenciado (Brazilian law) |
| RDD➣Random Digit Dialing |
| RDD➣Resilient Distributed Dataset (Apache Spark) |
| RDD➣Reliable Data Distribution |
| RDD➣Radiological Dispersal Device |
| RDD➣Random Digit Dial |
| RDD➣Real Disk Drive |
| RDD➣Relative Drawdown (foreign exchange market) |
| RDD➣Radar Detector Detector |
| RDD➣Radiological Dispersion Device |
| RDD➣Respiratory Drug Delivery |
| RDD➣Rights Data Dictionary |
| RDD➣Responsibility-Driven Design |
| RDD➣Radiation Dispersal Device |
| RDD➣Research, Development and Demonstration |
| RDD➣Regression Discontinuity Design (experiment design) |
| RDD➣Research and Development Directorate |
| RDD➣Renault Driver Development |
| RDD➣Red Dragon Disciple (Dungeons and Dragons & Neverwinter gaming) |
| RDD➣Remise des Diplômes (French: Graduation Ceremony) |
| RDD➣Replaceable Database Driver |
| RDD➣Requirements Definition Document |
| RDD➣Reliability Defect Density |
| RDD➣Rational Drug Design |
| RDD➣Research Data Design |
| RDD➣Redding, CA, USA - Redding Municipal Airport (Airport Code) |
| RDD➣Requirements Driven Development |
| RDD➣Research Development Department |
| RDD➣Return Data Delay |
| RDD➣Reviewable Design Data (project implementation protocol; various organizations) |
| RDD➣Recommended Daily Dosage |
| RDD➣Rigid Disk Drive |
| RDD➣Radio Direct Dial |
| RDD➣Requirements Determination Division |
| RDD➣Rapports de Développement Durable (French: Sustainable Development Reports; various organizations) |
| RDD➣Road Development Department (Sri Lanka) |
| RDD➣Requirement Definition Document |
| RDD➣Royaume des Dragons (French: Dragon Realm; gaming clan) |
| RDD➣Requirement Driven Design |
| RDD➣Requirements Documentation Directorate |
| RDD➣Required Delivery Density (fire sprinklers) |
| RDD➣Requirement Description Document |
| RDD➣Requested Due Date (telecommunications industry) |
| RDD➣Required Delivery Date/Data |
| RDD➣Rassemblement pour La Démocratie Directe (French: Rally for Direct Democracy) |
| RDD➣Ruggedized Disk Drive |
| RDD➣Richard's Design Drafting LLC |
| RDD➣Renegade Decepticon Dissidents (gaming clan) |
| RDD➣Relative Delay Deviation |
| RDD➣Racial Disproportionality and Disparities |
| RDD➣Redeployment Date (US DoD) |