Entry and stay of foreigners

Entry requirements
To enter Germany you need a passport that is valid for at least four months from your date of arrival. For citizens of EU countries a valid identity card is sufficient.

Link: http://www.auswaertiges-amt.de/DE/EinreiseUndAufenthalt/Uebersicht_node.html

Contact
German Foreign Office
Telephone and fax:
Switchboard: (24-hour service): +49 (0)3018 170
Local services: (Mon-Fri, 9am to 3pm): +49 (0)3018 172 000
Fax: +49 (0)3018 173 402
Postal address:
German Foreign Office
11013 Berlin
Germany

Visas
EU nationals do not require a visa. Citizens of all other countries will generally need a visa, with the exception of some countries for which the European Union has abolished the visa requirement. Nationals of those countries do not require a visa for visits to Germany lasting no longer than three months in a six-month period.