| R&D | Regional and Domestic 
| Others |
| R&D | Research and Development
| Research Center, Technology |
| R&D | Retail and Distribution
| Others |
| R/D | Rate of Descent
| Others |
| RD | A Reference Date
| Others |
| RD | Race Derived
| Others |
| RD | Race Developed
| Others |
| RD | Racing Developed
| Others |
| RD | Racketball Deal
| Others |
| RD | Radiation Detection
| Others |
| RD | Radiation Dominated
| Others |
| RD | Radical Dreamers
| Others |
| RD | Rage Day
| Others |
| RD | Raging Demon
| Others |
| RD | Rainbow Dash
| Others |
| RD | Raise Degree
| Others |
| RD | Ram Dayalu Nagar railway station
| Others |
| RD | Ram Disk
| Others |
| RD | Ramon Daniel
| Others |
| RD | Ranch Dog
| Others |
| RD | Random Dilution
| Others |
| RD | Random Dungeon
| Others |
| RD | Random Duration
| Others |
| RD | Rapid Deployment
| Others |
| RD | Rassemblement démocrate
| Others |
| RD | Rat Dog
| Others |
| RD | Rata Die
| Others |
| RD | Rate Distortion
| Others |
| RD | Rating Difference
| Others |
| RD | Ratings Deviation
| Others |
| RD | Ratings Difference
| Others |
| RD | Raw Data
| Others |
| RD | Raw Dog
| Others |
| RD | Reaction Diffusion
| Others |
| RD | Reactor Description
| Others |
| RD | Read Data
| Others |
| RD | Read Devster
| Others |
| RD | Reader's Digest
| Others |
| RD | Readers Digest
| Others |
| RD | Readiness Date
| Others |
| RD | Ready Diluted
| Others |
| RD | Real Date
| Others |
| RD | Real Decreto
| Others |
| RD | Real Drive
| Others |
| RD | Really Drunk
| Others |
| RD | Rear Differential
| Others |
| RD | Rear Drag
| Others |
| RD | Receive Data
| Others |
| RD | Receive Delay
| Others |
| RD | Receiving Data
| Others |
| RD | Recemment Degorge
| Others |
| RD | Recently Disgorged
| Others |
| RD | Recommended Diet
| Others |
| RD | Reconciliation Department
| Others |
| RD | Record Delimiter
| Others |
| RD | Recreation Droid
| Others |
| RD | Recreational Device
| Others |
| RD | Recurring Deposit
| Finance |
| RD | Recursion Desired
| Others |
| RD | Recursive Doubling
| Others |
| RD | Red
| Others |
| RD | Red Diamond
| Others |
| RD | Red Door
| Others |
| RD | Reference Data
| Others |
| RD | Reference Designator
| Others |
| RD | Reference Document
| Others |
| RD | Reference Drawing
| Others |
| RD | Referenced Document
| Others |
| RD | Refined Decision
| Others |
| RD | Regio Dragamine
| Others |
| RD | Regional Director
| Others |
| RD | Regional Distributor
| Others |
| RD | Register Destination
| Others |
| RD | Register Dump
| Others |
| RD | Registered Design
| Others |
| RD | Registered Dieititian
| Others |
| RD | Registered Dietician
| Others |
| RD | Registered Dietitian
| Others |
| RD | Registered Dietitians
| Others |
| RD | Registration District
| Others |
| RD | Registration Dossier
| Others |
| RD | Regression Discontinuity
| Others |
| RD | Regular Decision
| Others |
| RD | Relative Density
| Others |
| RD | Relative Dispersion
| Others |
| RD | Relatively Divisible
| Others |
| RD | Relaxation Device
| Others |
| RD | Remote Desktop
| Others |
| RD | Remote Device
| Others |
| RD | Removable Disk
| Others |
| RD | Remove Directory
| Others |
| RD | Remove Duplicates
| Others |
| RD | Rendering Description
| Others |
| RD | Repair Database
| Others |
| RD | Replacement Detachment
| Others |
| RD | Repo Department
| Others |
| RD | Report Delayed
| Others |
| RD | Report Direction
| Others |
| RD | Republica Dominica
| Others |
| RD | Republican Domination
| Others |
| RD | Requirement Directive
| Others |
| RD | Requirements Development
| Others |
| RD | Requirements Document
| Others |
| RD | Rescued Dog
| Others |
| RD | Reserve Decoration
| Others |
| RD | Reservoir Dogs
| Others |
| RD | Resident Director
| Others |
| RD | Residential Development
| Others |
| RD | Residential Director
| Others |
| RD | Resistance Divider
| Others |
| RD | Resistant Disease
| Others |
| RD | Respiratory Disease
| Others |
| RD | Rest and Daydreaming
| Others |
| RD | Restricted Data
| Others |
| RD | Resultant Distance
| Others |
| RD | Results Database
| Others |
| RD | Retarded Donkey
| Others |
| RD | Retinal Detachment
| Others |
| RD | Review Date
| Others |
| RD | Revolving Door
| Others |
| RD | Rewind Disk
| Others |
| RD | Rijksdriehoeksmeting A Division
| Others |
| RD | Rilindja Demokratike
| Others |
| RD | Rimorchiatori Dragamine
| Others |
| RD | Ring Down
| Others |
| RD | Ringdown
| Others |
| RD | Rising Darkness
| Others |
| RD | Risk Difference
| Others |
| RD | Ritual Dimension
| Others |
| Rd | Road
| Others |
| RD | Road Dog
| Others |
| RD | Robert Delmage
| Others |
| RD | Rock Drill
| Others |
| RD | Rodadura Desplazable
| Others |
| RD | Roger Dorothy
| Others |
| RD | Rolling Demo
| Others |
| RD | Roof Drain
| Others |
| RD | Rose Diane
| Others |
| RD | Roster Dependant
| Others |
| RD | Rotate Degrees
| Others |
| RD | Rough Draft
| Others |
| RD | Round
| Others |
| RD | Round Dance
| Others |
| RD | Routing Domain
| Others |
| RD | Royal Decree
| Others |
| RD | Rude Dude
| Others |
| RD | Running Dummy
| Others |
| RD | Rural Delivery
| Others |
| RD | Rural Depot
| Others |
| RD | Rural Development
| Others |
| RD | Rural District
| Others |
| RD | Russian Doll
| Others |
| Rd | Rutherford
| Others |
| RD | Ryan International Airlines
| Others |
| rd. | rund
| Others |