On 25 October 2015 local elections took place in Ukraine. The elections were conducted a little over a year since the 2014 snap local elections, which were only held throughout parts of the country. A second round of voting for the election of mayors in cities with more than 90,000 residents where no candidate gained more than 50% of the votes were held on 15 November 2015.

European Solidarity is a political party in Ukraine. It has its roots in a parliamentary group called Solidarity dating from 2000 and has existed since in various forms as a political outlet for Petro Poroshenko. The party with its then name Petro Poroshenko Bloc won 132 of the 423 contested seats in the 2014 Ukrainian parliamentary election, more than any other party.