List of wiki engines taken from [Wiki Popularity].  Also see [List of Line break markup] and [List of Table markup].

!!!Summary

The only term for the markup page which is generally used is [Text Formatting Rules] across wikis, so I would suggest as a [GoodPractice] to have wiki markup explanation on this page on each wiki or to at have a redirect from that page to the page explaining markup.  A redirect would also be preferable if the wiki is not in English.  -- [ChuckSmith]

!!!Most Popular Open Source Wiki Engines

* [MediaWiki] - [http://meta.wikimedia.org/wiki/MediaWiki_User's_Guide:_Editing_overview]
* [Twiki] - [http://twiki.org/cgi-bin/view/TWiki/TextFormattingRules]
* [TikiWiki] - [http://doc.tikiwiki.org/tiki-index.php?page=WikiSyntax]
* [PukiWiki] - [http://pukiwiki.sourceforge.jp/?FormatExample]
* [MoinMoin] - [http://moinmoin.wikiwikiweb.de/HelpOnEditing]
* [PmWiki] - [http://www.pmwiki.org/wiki/PmWiki/BasicEditing]
* [DokuWiki] - [http://wiki.splitbrain.org/wiki:syntax]
* [PhpWiki] - [http://phpwiki.sourceforge.net/phpwiki-1.2/index.php?TextFormattingRules]
* [MoniWiki] - [http://moniwiki.sourceforge.net/wiki.php/HelpOnFormatting]
* [TiddlyWiki] - [http://tiddlyspot.com/twhelp/#%5B%5BFormatting%20Text%5D%5D]
* [JSPWiki] - [http://jspwiki.org/wiki/TextFormattingRules]
* [SnipSnap] - [http://snipsnap.org/space/snipsnap-help]
* [WackoWiki] - [http://wackowiki.com/WackoDocumentation/WackoFormatting]
* [Xwiki] - [http://www.xwiki.org/xwiki/bin/view/XWiki/XWikiSyntax]
* [UseMod] - [http://www.usemod.com/cgi-bin/wiki.pl?TextFormattingRules]
* [Oddmuse] - [http://www.oddmuse.org/cgi-bin/wiki/Text_Formatting_Rules]
* [Midgard Wiki] - [http://daringfireball.net/projects/markdown/basics] (Markdown)
* [FlexWiki] - [http://www.flexwiki.com/default.aspx/FlexWiki/FormattingRules.html]
* [Zwiki] - [http://zwiki.org/TextFormattingRules]
* [TracWiki] - [http://trac.edgewall.org/wiki/WikiFormatting]

!!!Most Popular Commercial Wiki Engines

* [Confluence] - [http://confluence.atlassian.com/display/CONF20/Confluence+Notation+Guide+Overview]
* [PBwiki] - [http://yummy.pbwiki.com/WikiStyle]
* [Socialtext]
* [Wikispaces] - [http://www.wikispaces.com/wikitext]
* [StikiPad]

!!!Other Wiki Engines
* [MicKI]
* [ProWiki]
* [SdiDesk]
* [WikkaWiki]

!!!Other Markup

* Textile
* LaTeX
* HTML
* XHTML