Ottmar von Holtz (born 27 July 1961) is a German politician of Alliance 90/The Greens who served as a member of the Bundestag from the state of Lower Saxony since 2017.

In 1988, he was a lecturer in statistics and econometrics at the University of Namibia, then – after his return to Hannover – he was a lecturer and head of department at the Lower Saxony State Statistical Office until 2005.

Von Holtz became a member of the Bundestag in the 2017 German federal election.

When Jürgen Trittin resigned from the Bundestag, Von Holtz moved up the list.

This biography article about a member of the German Alliance 90/The Greens Party is a stub.