| Country | Capital |
|---|---|
| Albania | Tirana |
| Andorra | Andorra la Vella |
| Austria | Vienna |
| Belarus | Minsk |
| Belgium | Brussels |
| Bosnia and Herzegovina | Sarajevo |
| Bulgaria | Sofia |
| Croatia | Zagreb |
| Cyprus | Nicosia |
| Czech Republic | Prague |
| Denmark | Copenagen |
| Estonia | Tallinn |
| Finland | Helsinki |
| France | Paris |
| Germany | Berlin |
| Greece | Athens |
| Hungary | Budapest |
| Iceland | Reykjavík |
| Ireland | Dublin |
| Italy | Rome |
| Kosovo | Pristina |
| Latvia | Riga |
| Liechtenstein | Vaduz |
| Lithuania | Vilnius |
| Luxembourg | Luxembourg |
| Malta | Valletta |
| Moldova | Chisinau |
| Monaco | Monaco |
| Montenegro | Podgorica |
| Netherlands | Amsterdam |
| North Macedonia | Skopje |
| Norway | Oslo |
| Poland | Warsaw |
| Portugal | Lisbon |
| Romania | Bucharest |
| Russia | Moscow |
| San Marino | San Marino |
| Serbia | Belgrade |
| Slovakia | Bratislava |
| Slovenia | Ljubljana |
| Spain | Madrid |
| Sweden | Stockholm |
| Switzerland | Bern |
| Ukraine | Kiev |
| United Kingdom | London |
| Vatican City | Vatican City |
Source (2024) : United Nations (list of UN member states and permanent observers plus Kosovo)