The county is part of the Dublin constituency for the purposes of European elections.

He came ninth of twelve candidates in the Dublin constituency with 5,352 first-preference votes, or 1.3% of the valid poll.

He stood at the first direct elections in 1979 for the Dublin constituency but was not elected.

In 2004 he was elected to the European Parliament for the Dublin constituency.

She unsuccessfully contested the 2009 European Parliament election for the Dublin constituency.

Sinn Féin made a breakthrough in the Dublin constituency.

At the 2007 general election, he stood again in the Dublin North-Central constituency, but did not regain his seat.

From 2004 to 2009, it comprised the Leinster counties excluding the Dublin constituency.

He was an unsuccessful candidate at the 1979 European Parliament election in the Dublin constituency.

He stood unsuccessfully as an independent candidate at the 1984 European Parliament election for the Dublin constituency.