| FML | Forms Markup Language |
| GML | General Markup Language |
| VML | Vector Markup Language |
| KML | Keyhole Markup Language Dateiendung in Google Earth, vgl. http://earth.google.de/ |
| WML | Wireless Markup Language |
| WPML | Web Publishers Markup Language |
| QXML | QuarkXPress Markup Language |
| CML | Chemical Markup Language |
| XML | Extensible Markup Language |
| PGML | Precision Graphics Markup Language |
| SAML | Secure Assersation Markup Language Sicherheitsstandard im Internet |
| SAML | Security Assertion Markup Language |
| SCML | Spectrum Cataloging Markup Language |
| SGML | Standard Generalized Markup Language |
| TTML | Tagged Text Markup Language |
| ZCML | Zope Configuration Markup Language |
| UIML | User Interface Markup Language |
| VRML | Virtual Reality Markup Language |
| XAML | Extensible Application Markup Language |
| XHTML | Extensible Hypertext Markup Language |
| OPML | Outline Processor Markup Language |
| MRML | Multimedia Retrieval Markup Language |
| CFML | ColdFusion Markup Language [engl.] Firmenspezifische Erweiterung von HTML |
| cHTML | compact Hypertext Markup Language |
| CMML | Continuous Media Markup Language |
| DAML | DARPA Agent Markup Language |
| DBML | Data Base Markup Language |
| DHTML | Dynamic Hypertext Markup Language |
| DSML | Directory Service Markup Language |
| DTML | Document Template Markup Language |
| GML | Generalized/Geographic Markup Language |
| HDML | Handheld Device Markup Language |
| HGML | Hyper Graphics Markup Language |
| HMML | Hyper-Media Markup Language |
| MRML | Mind Reading Markup Language |
| MHTML | MIME encoded Hypertext Markup Language |
| AIML | Artificial Intelligence Markup Language [engl.] ist eine auf XML basierende Auszeichnungssprache, mit der Chatbots entwickelt werden |
| html | Datei im html-Format Hyper-text-markup-language eine Dateiendung |
| XQL | XML [eXtensible Markup Language] Query Language |