
This list of metro systems includes electrified rapid transit train systems worldwide. In some parts of the world, metro systems are referred to as subways, undergrounds, tubes, mass rapid transit (MRT), metrô or U-Bahn.
So the countries without one in Europe are:
- Albania
- Andorra
- Bosnia and Herzegovina
- Croatia
- Cyprus
- Estonia
- Iceland
- Ireland
- Kosovo
- Latvia
- Liechtenstein
- Lithuania
- Luxembourg
- Malta
- Moldova
- Monaco
- Montenegro
- North Macedonia
- San Marino
- Serbia
- Slovakia
- Slovenia
- Vatican
Slovakia and Ireland are the two largest countries without one, although MetroLink has been proposed for Dublin.
And here’s an alterative version of the map from geodatarankings.









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