Julius Friedrich Lehmann (28 November 1864, in Zurich – 24 March 1935, in Munich) was a publisher of medical literature and nationalist tracts in Munich. He was the brother of the bacteriologist Karl Bernhard Lehmann.
In Zurich he first went to the private school Beust'sche Privatschule and then to the Gymnasium.
In 1900 Lehmann left Switzerland and moved to Germany, where he bought the medical journal "Münchener Medizinische Wochenschrift" (i.e. "Munich Medical Weekly Magazine"), which he soon managed to make the most widely circulated journal of its kind in Germany. Many of the articles dealt with subjects that were to shape national-socialist ideology, like compulsory sterilization.
Lehmann became a member of the Deutsche Vaterlandspartei in 1917. He also became a member of the Thule Society. He established the Deutsche Volksverlag, which he handed over to Ernst Boepple.
Lehmann also published the journal Deutschlands Erneuerung (Germany's Renewal), which was edited by the Pan-German League. Lehmann's publishing house was an important connection between the German Nationalist Protection and Defiance Federation, the Marinebrigade Ehrhardt, then the Organisation Consul and the German National People's Party.
In 1923 Lehmann took part in the Beer Hall Putsch. He joined the Militant League for German Culture in 1928, and became a member of the NSDAP in 1931.
In 1934, at his 70th birthday, he received many honors, including the Eagle Shield of the German Reich.