| Acronym | Description |
| AF | Architectural Forms |
| AFDR | Architectural Form Definition Requirements |
| AIML | Astronomical Instrument Markup Language |
| ANSI | American National Standards Institute |
| ASP | Active Server Pages |
| ATA | Airline Transportation Association |
| BSR | Business Semantics Registry |
| CAD | Computer-Aided Design |
| CALS | Continuous Acquisition and Lifecycle Management or Computer-Aided Logistics Support |
| CBL | Common Business Language |
| CDF | Channel Definition Language |
| CDM | Content Data Model |
| CGM | Computer Graphics Metafile |
| CIDS | Component Information Dictionary Standard |
| CPFR | Collaborative Planning, Forecasting, and Replenishment |
| CSS | Cascading Style Sheets |
| cXML | Commerce XML |
| cycL | CYC Representation Language |
| DCD | Document Content Description for XML |
| DDML | Document Description Markup Language |
| DHTML | Dynamic HTML |
| DML | Development Markup Language |
| DISA | Data Interchange Standards Association or Defense Information Systems Agency |
| DOM | Document Object Model |
| DSSSL | Document Style Semantics and Specification Language |
| DTD | Document Type Definition |
| EC | Electronic Commerce |
| ECIX | Electronic Component Information Exchange |
| EDI | Electronic Data Interchange |
| ELTA | Encoded Literary Text Analysis |
| ERP | Enterprise Resource Planning |
| FIXML | Financial Information Exchange Protocol |
| FOSI | Format Output Specification Instance |
| FTP | File Transfer Protocol |
| GCA | Graphic Communications Association |
| GCSFUI | General Content, Style, Format, and User Interface |
| GedML | Genealogical Data Markup Language |
| GNOME | GNU Network Object Model Environment (GNU is a recursive acronym for GNU's Not UNIX) |
| HTML | Hypertext Markup Language |
| HTTP | Hypertext Transfer Protocol or Hypertext Transport Protocol |
| HyTime | Hypermedia/Time-based Structuring Language |
| ICE | Information & Content Exchange |
| IETF | Internet Engineering Task Force |
| IETM | Interactive Electronic Technical Manual |
| IMPDEF | EDI Implementation Guide Definition Message (a UN/EDIFACT message) |
| ISO | International Organization of Standards (French acronym) |
| JSML | Java Speech Markup Language |
| KIF | Knowledge Interchange Format |
| MathML | Mathematical Markup Language |
| MOF | Meta Object Format |
| MOM | Message-Oriented Middleware |
| OAGIS | Open Applications Group Interchange Specification |
| OASIS | Organization for the Advancement of Structured Information Standards |
| OBI | Open Buying on the Internet |
| ODA | Open Document Architecture |
| ODBMS | Object Database Management System |
| OFX | Open Financial Exchange Specification |
| OMG | Object Management Group |
| OSD | Open Software Description Format |
| OTP | Open Trading Protocol |
| PDM | Product Data Model |
| PGML | Precision Graphics Markup Language |
| PI | Public Identifier or Processing Instruction |
| PIDL | Personalized Information Description Language |
| PML | Pattern Markup Language or Phone Markup Language |
| PURL | Persistent URLs |
| RDF | Resource Description Format |
| RFC | Request for Comment |
| RIF | Railroad Industry Forum |
| SAX | Simple API for XML |
| SGML | Standard Generalized Markup Language |
| SME | Subject Matter Expert or Small and Mediumsized Enterprise |
| SMIL | Synchronized Multimedia Integration Language |
| SOAP | Simple Object Access Protocol |
| SOCAT | SGML-Open Catalog |
| SPDL | Standard Page Description Language |
| STEP | Standard Exchange for Product Data |
| SVG | Scalable Vector Graphics |
| SWAP | Simple Workflow Application Protocol |
| TCIF | Telecommunications Industry Forum |
| TEI | Text Encoding Initiative |
| TDML | Timing Diagram Markup Language |
| UDEF | Universal Data Element Framework |
| UI | User Interface |
| UML | Universal Modeling Language |
| UXF | UML Exchange Format |
| URI | Universal Resource Indicator |
| URL | Universal Resource Locator |
| VAN | Value-Added Network |
| VICS | Voluntary Interindustry Commerce Standards |
| VML | Vector Markup Language |
| VRML | Virtual Reality Markup Language |
| VXML | Voice Extensible Markup Language |
| W3C | World Wide Web Consortium |
| WIDL | Web Interface Definition Language |
| XFDL | Extensible Forms Description Language |
| XHTML | Extensible Hypertext Markup Language |
| XLL | XML Linking Language |
| XMI | XML Metadata Interchange |
| XML | Extensible Markup Language |
| XML4J | XML Parser for Java |
| XSL | Extensible Style Sheet |
| XUL | Extensible User Interface Language |
| YOYO | You're on Your Own |
