Ludwig Landmann (18 May 1868 – 5 March 1945) was a liberal German Jewish politician of the Weimar Republic.

But because of his Jewish ancestry, he was exposed to various antisemitic Nazi harassment; among other things, his pension payments were temporarily stopped.

After the German occupation of the Netherlands from 1940, he was hidden by relatives and friends to protect him from deportation, and possible death.

Today Ludwig Landmann Street in Frankfurt is dedicated to his memory.

A portrait of the mayor by William Runze, a painter from the Sossenheim district of Frankfurt, hangs in the Council Hall at the Römer, Frankfurt's City Hall.