An election of Members of the European Parliament representing Netherlands constituency took place on 4 June 2009.

For the first time, all Dutch residents of the Netherlands Antilles and Aruba were also entitled to vote in the election.

[1] The Netherlands Antilles and Aruba were granted the right to vote in the European Parliament election by a verdict of the Council of State which stated that it is illegal to differentiate in law between people with Dutch nationality in Europe and outside.

The government granted all persons of Dutch nationality voting rights for European elections.

The turnout of registered voters in the Netherlands Antilles and Aruba was 77% (rest of the world 66%.

A ruling of the Council of State decided that this was not allowed under the International Covenant on Civil and Political Rights.

The Party for the Animals contested this proposal, claiming that the minister ignored part of the Electoral Council's opinion.

Hence, when Romania and Bulgaria joined the union in 2007, the number of seats temporarily rose to 785, but later dropped back to 736 at time of the 2009 election.

This was because Europe Transparent, which sat in the European Greens-EFA group, did not take part in this election.

The Christian Union and SGP entered talks with the European Conservatives after the elections.

After 25 years of co-operation, the Christian Union and Reformed Political Party split into two groups in the European parliament.