Arnold Vaatz (born 9 August 1955) is a German politician of represents the Christian Democratic Union (CDU) who served as a member of the Bundestag from the state of Saxony from 1998 until 2021.
Vaatz became a member of the Bundestag after the 1998 German federal election. He was a member of the Committee on Education, Research and Technology Assessment and the Committee on Petitions. Vaatz did not stand for reelection in the 2021 German federal election.