In Lille, there are Crypto Parties happening since September of 2010, organized by the DegenereScience Lille group, with no regular basis (which means that user input is needed for us to set up such a public meeting).
At the moment we have no regular public meetings so you will need to contact us online before any IRL contact. Our public mailing list is a good entry point.
Please note that the DegenereScience group maintain no "official" link with the Telecomix cluster (however, the French people from Telecomix know who we are and where they can talk to us if ever needed…), so please do not expect us to follow any other guideline than our usual one. :-)
There may be other organizations which may get involved in other Crypto Parties in Lille. If this is the case then all people have to do is edit this page at this section. ,-)