The majority of major political parties in Europe have aligned themselves into one of the pan-European political organisations listed below. 13 of these organisations have been legally recognized by the European Union as political parties at the European level:
The Nordic Green Left Alliance is a transnational federation of parties, not a pan-European political party per se, but it articulates a broadly uniform ideology and its membership is exclusive to it. As such, it is treated akin to one here.
Parties represented in national parliaments or the European Parliament are generally included in the below chart, while independents have been omitted. Great ideological diversity can be found in most pan-European organizations, and individual country rows may not correspond with the heuristic left-right spectrum commonly used within its own political discourse.