Dieter Lüst (born 21 September 1956 in Chicago) is a German physicist, full professor for mathematical physics at the Ludwig Maximilian University of Munich since 2004 and a director of the Max Planck Institute for Physics in Munich.

In 2000, he received the Gottfried Wilhelm Leibniz Prize of the Deutsche Forschungsgemeinschaft, which is the highest honour awarded in German research.

He was a Fellow at the European Organization for Nuclear Research (CERN) in Geneva between 1988 and 1990, and was there again with a Heisenberg fellowship in 1990/93.

He has been an external scientific member of the Max Planck Institute for Gravitational Physics in Golm.

He has been an editor of Fortschritte der Physik and a co-editor of Journal of High Energy Physics.