Lothar Binding (born 1 April 1950) is a German politician of the Social Democratic Party of Germany (SPD) who served as a member of the Bundestag from the 1998 election until 2021.

Following his national civil service as a nurse's helper he studied mathematics, physics and philosophy at the universities of Heidelberg and Tübingen.

From the 1998 national elections, Binding was a member of the German Bundestag (lower house of Parliament), representing Heidelberg.

In the negotiations to form a Grand Coalition of Chancellor Angela Merkel's Christian Democrats (CDU together with the Bavarian CSU) and the SPD following the 2013 German elections, Binding was part of the SPD delegation in the working group on banking regulation and the Eurozone, led by Herbert Reul and Martin Schulz.

In April 2020, Binding announced that he would not stand in the 2021 federal elections but instead resign from active politics by the end of the parliamentary term.