MediaWiki User Groups
www.mediawiki.org/wiki/Groups
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
MediaWiki groups organize open source community activities within the scope of specific topics and geographical areas. They are Wikimedia User Groups that agree on a level of coordination in the MediaWiki context. As such, they extend the capacity of the Wikimedia Foundation in events, training, promotion and other technical activities benefiting Wikipedia, the Wikimedia movement and the MediaWiki software.