HTML-WikiConverter-MediaWiki 

http://search.cpan.org/dist/HTML-WikiConverter-MediaWiki/

HTML::WikiConverter::MediaWiki - Convert HTML to MediaWiki markup

HTML-WikiConverter-MediaWiki-0.55, 17 Sep 2006

documented on: 2007.04.18

Html2Wiki 

Newsgroups: gmane.org.wikimedia.mediawiki
Date: 2006-11-05
> Hello,I have searched and found multiple html2wiki converters. If someone
 could reccomend a quick and effective one I would appreciate it.

http://diberri.dyndns.org/wikipedia/html2wiki/index.html

hth

Swen