| IRX | Information Retrieval Experiment |
| ISR | Information Storage and Retrieval |
| IRS | Information Retrieval System |
| DSR | Document Search and Retrieval |
| ISR | Information Storage and Retrieval |
| NIR | Network Information Retrieval |
| SRS | Sound Retrieval System |
| CAR | Computer Aided Retrieval |
| TREC | Text Retrieval Conference |
| BRS | Bibliographic Retrieval Service |
| CAR | Computer Access & Retrieval |
| MEDARS | Medical Access and Retrieval System |
| MCIR | Machine Controlled Interactive Retrieval |
| MRML | Multimedia Retrieval Markup Language |
| MARS | Message Archiving and Retrieval Service |
| MARS | Multiuser Archival and Retrieval System |
| LIRA | Learning Information Retrieval Agent |
| SSRI | Secure Storage and Retrieval of Information |
| NIDR | Networked Information Discovery and Retrieval |
| MIRS | Management Information Retrieval System |
| ADR | automatic data retrieval [engl.] |
| ARS | Address Retrieval System [engl.] |
| BIR | Bibliographic Information Retrieval [engl.] |
| CBIR | Content Based Image Retrieval |
| UCIR | User Controlled Interactive Retrieval |
| CORE | Chemistry Online Retrieval Experiment |
| IRQL | Information Retrieval and Query Language |
| MEDLINE | Medical Literature Analysis and Retrieval System |
| GERHARD | GERman Harvest Automated Retrieval and Directory Osnabrück, http://www2.uni-osnabrueck.de/i3v/00217110/00070845.htm |
| SIGIR | Special Interest Group on Information Retrieval |
| CBIRS | Content Based Image Retrieval System |
| CERA | Climate and Environmental Data Retrieval and Archive |
| CSSR | Crystal Structure Search and Retrieval file |
| CNIDR | Clearinghouse for Networked Information Discovery and Retrieval |
| CIIR | Center for Intelligent Information Retrieval, Mass. |
| Eldorado | Elektronisches Dokumenten-, Retrieval- und Archivierungssystem der Universität Dortmund Dortmund, http://eldorado.uni-dortmund.de:8080/ |