The North Rhine-Westphalia state election, 2005, was conducted on May 22, 2005, to elect members to the Landtag (state legislature) of North Rhine-Westphalia in Germany. It was a victory for the Christian Democratic Union, who received enough seats to form a coalition with their preferred partner, the FDP, and end the previous government formed by the Social Democratic Party and the Greens, who also ruled at the federal level.