Eckhardt Rehberg (born 3 April 1954) is a German politician of the Christian Democratic Union (CDU) who served as a member of the Bundestag from the state of Mecklenburg-Vorpommern from 2005 until 2021.

From 1990 until 2005, Rehberg served as a member of the State Parliament of Mecklenburg-Vorpommern. From 2001 until 2005, he was the chairman of the CDU in Mecklenburg-Vorpommern. During that time, he was the party's candidate to unseat incumbent Minister-President Harald Ringstorff in the 2002 Mecklenburg-Vorpommern state election;^[1] he eventually lost against Ringstorff.

Rehberg became a member of the Bundestag in the 2005 German federal election.^[2] From 2005 until 2009, he served on the Committee on Economic Affairs and Technology. From 2009 until 2021, he was a member of the Budget Committee.^[3] In 2015 he also became his parliamentary group's spokesperson on the national budget. He was also a member of the so-called Confidential Committee (Vertrauensgremium) of the Budget Committee, which provides budgetary supervision for Germany's three intelligence services, BND, BfV and MAD. In addition to his committee assignments, he served on the Council of Elders, which – among other duties – determines daily legislative agenda items and assigns committee chairpersons based on party representation.

In the negotiations to form Merkel's fourth coalition government following the 2017 federal elections, Rehberg was part of the working group on financial policies and taxes, led by Peter Altmaier, Andreas Scheuer and Olaf Scholz.