• AERJ - Asocio Esperanta de Rio-de-Ĵanejro
• Bitbucket - a Mercurial version control system host - using the Python creoleparser module
• Extension for OddMuse
• Kantaro-Vikio - community collecting Esperanto song lyrics using DokuWiki
• La Venko-Vikio - community collecting funny pictures of "Esperanto" signs
• MyOpenLink - OpenLink Data Spaces public access site. Create your own wiki instance, or work within someone else's. Note that Creole support is a per-cluster setting, where clusters are contained within instances -- so not all instances will support Creole, though the overall Data Spaces do.
• OpenOffice Wiki - The German Open Office Wiki uses Creole
• PageOfText - You decide the content... it's just a page of text. Creole markup is available in the "advanced options" for a page.
• Sylabus AMU - using the MoinMoin Creole parser plugin (private wiki, but here are some public pages)
• TingWiki - using the Creole Markup Extension for OddMuse
• WikiCreole (this wiki) - using the JSPWiki:CreolePageFilter.
• WikiOhana - using the Creole Markup Extension for OddMuse

The following sites are not really wikis (in terms of collaborative content authoring), but use creole:

• Sheep's wiki and diary - using the Creole Markup Extension for OddMuse

Also see Engines