Petra Nicolaisen (born 12 December 1965) is a German politician of the Christian Democratic Union (CDU) who has been serving as a member of the Bundestag from the state of Schleswig-Holstein since 2017.

From 2009 until 2017, Nicolaisen was a member of the State Parliament of Schleswig-Holstein for three terms, where she served on the Committee on Internal and Legal Affairs.

Nicolaisen became a member of the Bundestag in the 2017 German federal election, representing the Flensburg – Schleswig constituency.

[2] In addition to her committee assignments, Nicolaisen co-chairs the German-Nordic Parliamentary Friendship Group and is a member of the German delegation to the Baltic Sea Parliamentary Conference (BSPC).

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