The field of 2-euro commemorative coins is remarkably diverse. Yet one particular group holds a special place within it: the joint issues marking outstanding European occasions. Unlike the regular 2-euro commemoratives, which every euro country issues on its own for purely national events, these special strikes share one design across the whole of Europe. All participating member states of the eurozone strike a coin with an identical motif for a historic, political or social milestone in European history. The coins differ only in the country name and the wording of the occasion, which appear on the coin in the respective national language. Because such issues come along only every few years, with long gaps between the individual series, collectors look forward to every new joint issue with great anticipation.

The 2-euro joint issues were born in March 2007: to mark the 50th anniversary of the Treaty of Rome, the very first of these series was ceremonially released. Because these special strikes are reserved exclusively for major pan-European milestones, the European institutions (the Council of the EU and the European Commission), together with the governments of the participating euro states, agree on a new joint project only at irregular intervals of several years. The following issues have appeared so far or have already been officially announced – detailed facts, exact mintage figures and images of all national variants can be found on the respective subpages: