A citizen of another Member State of the EU living in Finland may choose vote in the European Elections in Finland. This requires, however, that he or she enrolls with the voting register in Finland. When a person has been entered in the voting register in Finland, the Finnish authority will notify the relevant authority in his or her home state of the registration, and he or she will be removed from the electoral register of this state. According to the EU Elections Act no one may vote in more than one Member State of the European Union in the same election. EU citizens may vote either in their home state or in the state they live in.
More information in the letters of the Finnish Population Register Centre:
Form for registration of the right to vote in the voting register in Finland. The letters and the form are available in Finnish, Swedish, English, German, French, Estonian, Spanish, Italian and Polish.
A citizen of another Member State who has been enrolled with the voting register in Finland can also be a candidate in the European Elections in Finland. More about nomination of candidates.