Since 1998, the Casia Corporation Holland have been working on The Definitive TLA Wörterbuch to help people find their way in the ever growing intellectual chaos caused by the late-twentieth century tendency to use as many acronyms in daily communication as possible. Especially acronyms with a length of three letters have been and continue to be immensly popular, not only in Information and Communication Technology circles, but also among people in more mundane fields of labour; a tendency that has mushroomed with the advent of mobile communication and the combined growing popularity of Short Message Services.

At present, there are 7364 TLAs in the database. Of these, 4424 are distinct, out of 17576 possible (25.17%).

Please click on a bar in the diagram that is displayed below, or enter a search-string.

TLA's starting with R
342 results

RAA  Reductio Ad Absurdum
  Regional Airline Association
RAC  Regionaal Avond College
  Royal Automobile Club
RAD  Radiation Absorbed Dose
  Rapid Application Development
  Routing Arbiter Database
RAE  Radiodifusión Argentina al Exterior
  Royal Aircraft Establishment
RAF  Rote Armee Fraktion
  Royal Air Force
RAH  Reductio ad Hitlerum
  Royal Albert Hall
RAI  Request for additional information
  Rijwiel- en Automobielindustrie
RAL  Reichsausschuß für Lieferbedingungen
RAM  Random Access Memory
  Reliability, Availability, and Maintainability
  Royal Academy Member
  Royal Air Maroc
RAO  Randstad Afval Overleg
  Recreatie en Algemene Ontspanning
RAR  Reverse Access Ranking
  Roelof Albert Ruules
  Roshal ARchive
RAS  Redundant Acronym Syndrome
  Remote Access Service
  Revue ASiatique
  Robert Alexander Spencer
  Row Address Strobe
  Royal Astronomical Society
RAT  Remote Access Trojan
RAW  Raw Architecture Workstation
  Reading and Writing
  Reality And Wonder
  Reconfigurable Architectures Workshop
  Reggae Ambassadors Worldwide
  Ride Around Washington
  Rutgers Accounting Web
RBA  Regionaal Bureau voor de Arbeidsvoorziening
RBB  Rundfunk Berlin Brandenburch
RBC  Recurring Boundary Conditions
  Red Blood Cells
RBD  Rigid Body Dynamics
RBE  Rekening Beoordelen Elftal
RBF  Radial Basis Function
RBG  Ruth Bader Ginsburg
RBK  Register Bijzondere Kentekens
  Rijksdienst Beeldende Kunst
RBS  Royal Bank of Schotland
RBT  Recherche Bijstands Team
  Ruim Baan voor Talent
RCA  Radiation Controlled Area
  Radio Corporation of America
RCC  Rescue Coordinatin Center
RCF  Revolving Credit Facility
RCI  Regional Competitiveness Index
  Renault Crédit International
RCM  Reliability Centred Maintenance
RCO  Ripple Carry Out
RCP  Rich Client Platform
RCS  Reaction Control System
  Reactor Coolant System
  Revision Control System
RCT  Randomised Controlled Trial
  Randomized Control Trial
  Randomized Controlled Trial
RCV  Ranked Choice Voting
RDB  Relational Data Bases
RDC  Rapid Development Capability
RDD  Radiological Dispersal Device
  Resillient Distributed Dataset
RDE  Revue D'Egyptology
RDF  Reality Distortion Field
  Resource Description Format
  Resource Description Framework
RDI  Rijksinspectie Digitale Infrastructuur
RDM  Rational Decision Making
  Research Data Management
RDO  Raad voor Delta Onderzoek
RDP  Remote Desktop Protocol
RDV  Responsive Design View
RDW  Rijks Dienst voor het Wegverkeer
  Ruud De Wild
REB  Rectabular Excrusion Bracket
RED  Radiological Exposure Device
REF  Rapid Equipping Force
REM  Rapid Eye Movement
  Reclame Exploitatie Maatschappij
  Remote Elevator Monitoring
  Roentgen Equivalent Man
RER  Réseau Express Régional
  Retarded Entity Relationship
RES  Radar Environment Simulator
  Review of Economic Studies
  Rothamsted Experimental Station
  Rudder Elevator Spoiler
RET  Rotterdams Electrische Tram
  Round Earth Theory
RFB  Roughly From Behind
RFC  Request For Comments
RFD  Recipe For Disaster
  Request For Date
RFE  Radio Free Europe
  Request For Enhancement
RFF  Rescue and Fire Fighting
RFG  Random Format Generator
RFH  Royal Festival Hall
RFI  Radio France International
  Request For Information
RFK  Rorys First Kiss (code name for Batman II, the Dark Knight)
RFM  Renderman For Maya
  Rotary Forging Machine
RFO  Radio Filharmonisch Orkest
  rectal foreign object
RFP  Reqeust For Proposal
  Request For Proposal
RFQ  Request For Quote
RFT  Relational Frame Theory
  Revisable Form Text
  Right First Time
RFZ  Reflection Free Zone
RGA  Relief Goods Alliance
RGB  Red Green Blue
RGD  Rijks Geologische Dienst
RGI  Realtime Global Illumination
RGL  Rijn Gouwe Lijn
RHA  Road Haulage Association
RHB  Right Hand Bat
RHC  Red Haired Cunt
RHE  Rad Hard Electronics
RHL  Retarded Hillbilly Language
RHR  Residual Heat Removal
  Revue de l'Historie des Religions
  Righthand Head Rule
RHS  Right Hand Side
  Royal Horticultural Society
RHW  Rachel Hurd-Wood
RIA  Reactivity Initiated Accident
RIB  Rail Infra Beheer
  RenderMan Interface Bitstream
  Routing Information Base
RIC  Radio Industry Council
RIE  Rage In Eden
  Reactive-ion etching
RIM  Research in Motion
  Rorschach Inktvlekken Methode
RIO  Radar Intercept Officer
  Rovecom Interne Optimalisering
RIP  Resquiat In Pacem
  Reversed Implementation Protocol
  Rod Internal Pressure
  Routing Information Protocol
RIS  Remote Installation Services
  Republik Indonesia Sarikat
  Russian Imperial Stout
RIT  Rampen Identificatie Team
RJK  Rotterdamse Jongeren Kern
RJS  Robert Jan Stips
RKD  Rijksbureau voor Kunsthistorische Documentatie
RKK  Rooms Katholieke Kerk
RLA  Regeling voor Laagfrequente Aandoeningen
RLE  Run-Length Encoding
RLQ  Regolatore Lineare Quadratico
RLS  Real Life Soap
RMA  Recording Management Area
  Return Merchandise Authorization
RMC  RenderMan Compliant
  Rest My Case
RMD  Recording Management Data
RMF  Rich Map Format
  Rich music format
RMI  Radio Massacre International
  Reliability Maintenance Institute
  Remote Method Invocation
  Republic Mortgage Insurance
  Rocky Mount Instruments
RMO  Raad voor Maatschappelijke Ontwikkelingen
  Regionaal Milieu-Overleg
  Register voor Maatschappelijke Objecten
  Rijdende Melk Ontvangst
  Rijksmuseum voor Oudheden
RMP  Resonant Magnetic Perturbations
RMS  Republik Maluku Selatan
  Royal Mail Steamer
RMT  Reservist Militaire Taken
RMV  Rijksmuseum voor Volkenkunde
RMZ  Radio Mandatory Zone
RNA  RiboNucleic Acid
RNC  Republican National Committee
  Republican National Convention
RND  Random
RNN  Recurrent Neural Network
ROA  Researchcentrum voor Onderwijs en Arbeidsmarkt
  Rules Of the Air
ROB  Rape Of Belgium
ROC  Receiver Operating Characteristic
  Regionaal Opleidings Centrum
ROE  Report of Eligibility
  Rules Of Engagement
ROF  Rolling On Floor
ROG  Rijks Opvoedings Gesticht
ROI  Region Of Interest
  Return On Investment
ROK  Republic Of Korea
ROM  Read Only Memory
RON  Research Octane Number
ROR  Rapid Operational Reuse
  Ruby on Rails
ROT   Right on Time
   Rule of Thumb
  Rate of Turn
  Rate One Turn
  Receive Only Terminal
  Record Of Trial
  Reign of Terror
  Republic of Texas
  Republic of Turkey
  Republic Of Turkey
  Retailers' Occupation Tax
  Running Object Table
  Runway Occupancy Time
ROV  Remotely Operational Vehicle
ROW  Right Of Way
RPC  Remote Procedure Call
  Rocket Propelled Chainsaw
RPD  Requirements and Planning Document
  Robust Product Design
RPF  Reformatorisch Politieke Federatie
  Reverse Path Forwarding
RPG  Rocket Propelled Grenade
  Role Playing Game
RPL  Recreational Pilot License
RPM  RPM Package Manager
RPS  Regional Pressure Setting
  Renderman Pro Studio
RRE  Red Rhino Europe
  Rock & Roll Evacuation
RRM  Renal Repair Mechanisms
RRP  Recommended Retail Price
RRR  Rapidly Reusable Rockets
  Required Run Rate
  Ride a Rubber Rocket
RRS  Rational Response Squad
  Renault Route Service
  Riool Reinigings Service
RRW  Reliable Replacement Warhead
RSA  Republic of South Africa
  Rivest, Shamir, Adleman
RSC  Resource
  Reusable Software Components
RSD  Record Store Day
  Reservist Specifieke Deskundigheid
RSF  Reporters Sans Frontières
  Right Said Fred
RSG  RijksScholenGemeenschap
RSI  Repetitive Strain Injury
  Repubblica Sociale Italiana
RSJ  Raad voor Strafrechttoepassing en Jeugdbescherming
RSL  Recurring Slope Lineae
  Renderman Shading Language
RSM   Resource Standard Metrics
  Rolling Stone Magazine
RSN  Real Soon Now
RSO  Range Safety Officer
  Richtlijn Sportdeelname Onderzoek
  Rivista deglie Studi Orientali
  Russian School Of Mathematics
RSP  Rate of Subproblem Proliferation
  Rising Sun Pictures
  Role Swap Protocol
RSS  Radar Signal Simulator
  Radial Shaft Seal
  Radio Security Service
  Radio Service Software
  Radio Sub System
  Radiodetermination Satellite System
  Rail Security Service
  Rail Surveillance Service
  Range & Synchronisation Subsystem
  Rashtriya Swayamsewak Sangh
  RDF Site Summary
  Ready Service Spare
  Ready Supply Store
  Real Stream System
  Really Simple Syndication
  Residual Sum of Squares
  Rotating Service Structure
RSU  Ruimtelijke Strategie Utrecht
RSV  Rainbow Six Vegas
  Respiratoir Syncrytiaal Virus
  Respiratory Syncytial Virus
  Rijn Schelde Verolme
RSX  Real-time System eXecutive
RTA  Real Time Animation
  Road Traffic Accident
RTB  Return To Base
RTC  Reactivity Temperature Coefficient
  Real Time Clock
RTF  Rich Text Format
RTG  Radioisotope Thermoelectric Generator
RTL  Radio & Television Luxembourgh
  Receptie in het Teken van de Lente
  Register Transfer Level
  Resistor-Transistor Logic
RTM  Release To Manufacturing
RTP  Real-time Transport Protocol
RTR  Referentiekader Taal en Rekenen
RTS  Real Time Strategy
RTV  Radio TeleVisie
RTX  Ray Tracing Texel eXtreme
RUA  Robot Unicorn Attack
RUC  Registry of Univeral Companies
RUD  Rapid Unscheduled Disassembly
  Regionale Uitvoeringsdienst Drenthe
RUG  Rijksuniversiteit Groningen
RUL  Rijksuniversiteit Leiden
RUN  Radboud Universiteit Nijmegen
RUP  Rational Unified Process
RUR  Rechtstreeks Uit Richter
RUU  Rijksuniversiteit Utrecht
RVA  rijvaardigheidsanalyse
RVB  Rijksvastgoedbedrijf
RVD  Rijks Voorlichtingsdienst
RVM  Ruby Version Manager
RVO  Rijksdienst voor Ondernemend Nederland
RVP  RendezVous Point
  Rentevaste Periode
RVS  Roestvast Staal
  Rotterdamse Verzekering Sociëteiten
RVU  Radio VolksUniversiteit
RVZ  Raad voor de Volksgezondheid en Zorg
RWD  Responsive Web Design
RWN  Radio Wereldomroep Nederland
RWP  Radiation Work Permit
RWS  Rate of Work Shrinkage
RZN  ReumaZorg Nederland