Union for Europe of the Nations (UEN)[26][27] was a national-conservative, Eurosceptic political group that operated in the European Parliament between 1999 and 2009.

Its members were parties such as the Rally for France, Italian National Alliance and Lega Nord, Irish Fianna Fáil, and Polish Law and Justice.

After the 2009 European Parliament election, UEN was dissolved due to its member parties opting to switch to other groups.

UEN was a heterogeneous group: broadly Eurosceptic and national-conservative, it included some parties which were either uncomfortable with this characterisation or eventually evolved into something different.

[29] UEN members migrated to other groups after the elections in June 2009 and before the Seventh European Parliament term started on 14 July 2009.