List of metro systems in Europe

The following list of metro systems in Europe is ordered alphabetically by country and city. Although the term metro (or métro, metró, metrosu, metropoliteni, or metropolitano / metropolitana in Southern Europe, or mietrapaliten / metropoliten in Eastern Europe) is widespread in Europe, there are also other names for rapid transit systems, such as subway, underground, tube, T-bane, tunnelbana or U-Bahn.

Source: Wikipedia — List of metro systems in Europe (CC BY-SA 4.0)