Nearly 400 million citizens across the bloc are eligible to vote.
Voters will be electing their national representatives for the 10th time since the first EU elections were held in 1979.
Poles will head to the ballot box on Sunday to elect 53 MEPs.
This will mark the latest installment in the nation's electoral marathon that began with parliamentary elections last October and continued with local elections in April.
This series has yet to culminate in the pivotal presidential election next year.
In the run-up to Sunday’s ballot, Michał Owczarek spoke with Witold Naturski, head of the European Parliament Liaison Office in Poland, about why it matters to get out and vote.
Witold Naturski. Photo: PAP/Przemysław Piątkowski
Poland has been part of the European Union since May 1, 2004.
Click on the audio player above to listen.