| Abbreviations and Acronyms of the U.S. Government: Lists federal government abbreviations and acronyms. Includes links to official government web sites. |
| AbbreviationZ: Browse acronyms and abbreviations by category. |
| ACRO.IT Acronym Directory: Collection for information technology and related subjects. |
| Acronym Arsenal: Computer and communication acronyms. |
| Acronym Finder: Searchable database covering computers, government, telecommunications, and military situations. |
| Acronym Guide: A directory of common acronyms by topic. |
| Acronym Master List for LANL: Large list of acronyms, initialisms, abbreviations, and short forms that are used by or useful to Los Alamos National Laboratory. |
| Acronym Search: Lookup engine which accepts new entries. |
| Acronym Server Simplified: A list of acronyms hosted by University College Cork, gathered from many sources and submitted by users. |
| Acronyma: Definitions in multiple languages. |
| Acronyms and Abbreviations: Online translation lookup of English and German. |
| Acronyms and Abbreviations Dictionary: Contains terms with origins in the military, medical, technological, and business and training fields. |
| Acronyms and Initialisms for Health Information Resources: Acronyms for global information and data resources in the health sciences. |
| AfkWin Acronyms: Features downloadable browser and filter software. In Dutch and English. |
| Altronix Technical Acronyms: A comprehensive list in common usage in the computer, electronics and engineering fields. |
| Apronyms: Lists educational and mnemonic acronyms. |
| Babel: Computer-related Acronyms: A glossary of computer science and internet acronyms. |
| Biomedical Acronym Resolver: Tool for conversion. |
| Broadband Acronyms & Definitions: Terms used by service providers and software developers. |
| Cartography Acronyms: Dictionary of terms used in geographic information systems, cartography and remote sensing. |
| CDIA Center Acronyms and Abbreviations: Carbon Dioxide Information Analysis Center indexed list. |
| CRM Acronyms: Frequently used cultural resource management acronyms. |
| Dictionary of Initials Acronyms and Abbreviations Used by Counselors: Subdivided by first letter. |
| Dictionary of Quaternary Acronyms and Abbreviations: Acronyms and abbreviations that are common in Quaternary studies |
| Downloadable Computer Acronyms: Collect of computer and computer-related acronyms in downloadable format. |
| eBay Acronyms: Abbreviations one might find in eBay item listings and on community discussion boards. Many of the terms are used at other auction websites as well. |
| Explain Acronym Search: Provides a tool for conversion. |
| Freeware Hall of Fame: Acronyms and emoticons used in the computer community. |
| Frequently Seen Space/Astronomy Acronyms: Terms commonly appearing in space-related newsgroups. |
| Glossary and Acronyms for PC and Server Technologies: Glossary of hardware and driver development terms for Windows products. |
| Google Glossary: Find definitions for words, phrases and acronyms. |
| Hawkman's Automotive Abbreviations: Indexed collection. |
| Health & Safety Acronyms: Short list used in the field of UK Occupational Health and Safety. |
| High Energy Astrophysics: Common Acronyms: A small, very specialized reference. |
| Home of the Network Acronyms: Computer network acronyms in a first-letter-per page format. |
| Learning, Performance, and Training Acronyms: Small collection of human resource oriented terms. |
| List of US Government Acronyms: A glossary of terms found in US government databases and in print publications. |
| MediLexicon: Searchable database of pharmaceutical, healthcare and medical abbreviations and acronyms. |
| Oceanic and Atmospheric Acronyms: Specialized collection from the US National Oceanic and Atmospheric Administration. |
| Svetlozar Online's Abbreviation Glossary: Computer and telecommunications acronyms and their meanings. Searchable and browsable. |
| The Great Abbreviations Hunt: A general guide to three letter terms. |
| The Ultimate Computer Acronyms Archive (TUCAA): Offers a searchable or browsable interface. |
| USPS Acronyms and Abbreviations Glossary: United States Postal Service terms and operational numbers. |
| USPS Official Abbreviations: Official abbreviations of the United States Postal Service. |
| V.E.R.A. - Virtual Entity of Relevant Acronyms: List of computer acronyms, with cross references. |
| Veterinary Abbreviations and Acronyms Glossary: Terms commonly used in veterinary practice. |
| Wiley InterScience Acronym Finder: Scientific and technical terms, and symbols, with browsing and searching tools. |
| WWW Acronym and Abbreviation Server: Allows a search for terms containing a particular word. |
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