Dānija Aarhus Guldborgsund Igaunija Elva Haapsalu Pärnu Rakvere Tallinn Tartu Latvija Cēsis Jēkabpils Jelgava Liepāja Riga Valmiera Lietuva Gargždai Jonava Kaunas Klaipėda Palanga Panevėžys Tauragé Norvēģija Arendal Kristiansand Polija Darłowo Elbląg Gdańsk Gdynia Kołobrzeg Koszalin Mielno Pruszcz Gdański Reda Rumia Sejny Słupsk Sopot Somija Espoo Helsinki Jyväskylä Kemi Kotka Lahti Mariehamn Pori Porvoo Turku Vaasa Ukraina Chernihivka Chernivtsi Kamianets-Podilskyi Kherson Khmelnytskyi Kolomyia Kramatorsk Myrove Pokrovsk Rivne region (partner) Rubizhne Vilnyansk Vyshhorod Zaporizhzhia Zaporizhzhia Vācija Greifswald Hamburg Kiel Rostock Zviedrija Gävle Kalmar Karlskrona Luleå Malmö Örebro Region of Gotland Söderhamn Umeå Växjö Mielno UBC member city since 2013 City web site