The European Esperanto Union (Eŭropa Esperanto-Unio) groups together the national Esperanto associations of the EU member states and holds congresses every two years. The most recent was in Maribor, Slovenia, in July–August 2007. It attracted 256 delegates from 28 countries, including two members of the European Parliament, Małgorzata Handzlik of Poland and Ljudmila Novak of Slovenia.
In 2009 the Omaha World-Herald reported that the European Esperanto Union ran a full-page advertisement in French newspaper Le Monde advocating the use of Esperanto instead of English.
As of October 2011Seán Ó Riain is the President of the European Esperanto Union.