This is a list of people whose ideas became part of Nazi ideology. The ideas, writings, and speeches of these thinkers were incorporated into what became Nazism, including antisemitism, German idealism, eugenics, racial hygiene, the concept of the master race, and Lebensraum. The list includes people whose ideas were incorporated, even if they did not live in the Nazi era.

Philosophers and sociologists Alfred Baeumler (1887–1968), German philosopher in Nazi Germany. He was a leading misinterpreter of Friedrich Nietzsche's philosophy as legitimizing Nazism. Thomas Mann read Baeumler's work on Nietzsche in the early 1930s, and characterized passages of it as "Hitler prophecy."Thomas Mann und Alfred Baeumler, Würzburg: Königshausen & Neumann, 1989, p. 185 Houston Stewart Chamberlain (1855–1927) was a British-born author of books on political philosophy, and natural science. His two-volume book Die Grundlagen des Neunzehnten Jahrhunderts ("Foundations of the 19th century") (1899) became a manual for Nazi racial philosophy including the concept of the master race. Considered to be one of Hitler's intellectual mentors.Shirer, William L. The Rise and Fall of the Third Reich, 1959, p.105 of 1985 Bookclub Associates Edition. Karl Haushofer (1869–1946) was a German general, professor, geographer, and politician. Through his student Rudolf Hess, Haushofer's ideas known as Geopolitiks influenced the development of Adolf Hitler's expansionist strategies. Rudolf Jung (1882–1945), the author of Der Nationale Sozialismus, a theoretical work which, the author hoped, would eventually play the same role for Nazism that Das Kapital played for Marxism. Ernst Krieck (1882–1947), German pedagogue.Max Weinreich. Hitler's professors: the part of scholarship in Germany's crimes against the Jewish people. Yiddish Scientific Institute-YIVO, 1946. Pp. 18.

Alfred Rosenberg (1893–1946), considered one of the main authors of key Nazi ideological creeds, including the racial policy of Nazi Germany, antisemitism, Lebensraum, abrogation of the Treaty of Versailles, and opposition to degenerate art. He is also known for his rejection of Christianity, while playing a role in the development of Positive Christianity. At Nuremberg he was tried, sentenced to death, and executed by hanging as a war criminal. Herman Schmalenbach (1885–1950), who refined the concepts of Gemeinschaft and Bund. While his ideas on the Bund were utilized in Nazi thought there is no evidence that Schalenbach was a Nazi or sympathized with their genocidal racial view regarding Jews. He spent World War 2 years in Switzerland. Carl Schmitt (1888–1985) was a jurist, philosopher, political theorist, and professor of law. Schmitt joined the Nazi Party on 1 May 1933.Claudia Koonz, The Nazi Conscience, p 58 He presented his theories as an ideological foundation of the Nazi dictatorship, and a justification of the "Führer" state with regard to legal philosophy, in particular through the concept of auctoritas. Nevertheless, in December 1936, the SS publication Das schwarze Korps accused Schmitt of being an opportunist, a Hegelian state thinker and basically a Catholic, and called his anti-semitism a mere pretense, citing earlier statements in which he criticized the Nazis' racial theories. After this, Schmitt resigned from his position as "Reichsfachgruppenleiter" (Reich Professional Group Leader), although he retained his post as a professor in Berlin, and his post as "Preußischer Staatsrat". Although Schmitt continued to be investigated into 1937, further reprisals were stopped by Göring.Bendersky, Joseph, W., Theorist For The Reich, 1983, Princeton, New JerseyNoack, Paul, Carl Schmitt - Eine Biographie, 1996, Frankfurt In 1945, Schmitt was captured by the American forces and released in 1946. Schmitt refused every attempt at de-nazification, which effectively barred him from positions in academia. Otto Strasser (1897-1974), brother of Gregor Strasser (see below under Others), who advocated a version of Nazism based on economic antisemitism. He was ideologically similar to Ernst Röhm, and emphasized the need for the Nazis to radically overthrow German society. His few supporters were later purged from the NSDAP during the Night of the Long Knives, and he lived in exile for most of the Third Reich. Ironically for some, his views on the Soviet Union were friendly at certain points in his life. See Strasserism for more information. Hans Blüher (1888-1954), philosopher who advocated the concept of a Männerbund, was a supporter of the Nazis until the Night of the Long Knives.

Scientists and physicians Karl Brandt (1904–1948), SS officer and physician, Hitler's personal doctor for a period, was the administrator of the Aktion T4 euthanasia program. Eugen Fischer, German biologist, member of the Nazi Party, prominent in genetics and "racial hygiene". Hans F. K. Günther (1891–1968), German race researcher and eugenicist in the Weimar Republic and Nazi Germany, also known as "Rassengünther" (Race Günther) or "Rassenpapst" (Race Pope). He is considered to be a major influence on Nazi racialist thought, and was a member of the Nazi Party.Christopher Hale. Himmler's Crusade: the True Story of the 1938 Nazi Expedition into Tibet Bantam, 2004. Philipp Lenard (1862–1947), Nobel laureate and ideologue of the Deutsche Physik movement. Fritz Lenz, German geneticist, member of the Nazi Party, and influential specialist in "racial hygiene". Josef Mengele (1911-1979), Nazi SS officer and physician at the Auschwitz death camp who performed inhumane experiments on the inmates there. Known as the "Angel of Death". Alfred Ploetz (1860–1940), German physician, biologist, and eugenicist who introduced the concept of racial hygiene in Germany. He was a member of the Nazi party."Die Tüchtigkeit unserer Rasse und der Schutz der Schwachen", 1893, p. 141, 142. cited by Massimo Ferari Zumbini: The roots of evil. Gründerjahre des Antisemitismus: Von der Bismarckzeit zu Hitler, Vittorio Klostermann, Frankfurt a. M. 2003, , p.406 His brother Ernst Rüdin, also a committed Nazi, praised him in 1938 as a man who "by his meritorious services has helped to set up our Nazi ideology."Ernst Ruedin: "Honor of Prof. Dr. Alfred Ploetz", in ARGB, Bd 32 / S.473-474, 1938, p.474 Johannes Stark (1874–1957), Nobel laureate and ideologue of the Deutsche Physik movement. Otmar Freiherr von Verschuer (1896–1969), German human biologist and eugenicist primarily concerned with racial hygiene and twin research. Ernst Schäfer (1910-1992), Schäfer is famous for the 1938–1939 German expedition to Tibet, he was a member of the SS division that is discussed in this article known as the Ahnenerbe.

Theologians and spiritual leaders Ernst Bergmann (1881–1945), German philosopher who in his work, Die 25 Thesen der Deutschreligion (Twenty-five Points of the German Religion), held that the Old Testament and portions of the New Testament of the Bible were inaccurate. He claimed that Jesus was not a Jew and of Aryan origin, and that Adolf Hitler was the new messiah.McNab, Chris (2009). The Third Reich. Amber Books Ltd., p. 182 Jakob Wilhelm Hauer (1881–1962), German Indologist and religious studies writer. He was the founder of the German Faith Movement.Carl G. Jung (1970); Collected Works, Volume 10; Routledge and Kegan Paul, London; ; p 190–191. Ludwig Müller (1883–1945), was a theologian and church leader who played a major role in the Nazi party's attempt to misdirect the Protestant, mainly Lutheran churches of Germany toward a basis in Aryan ideology and away from its Jewish origins. He had a leading part in the Nazi, Gleichschaltung, the plan to unite the previously independent Protestant churches into a single Church of the New Order, which is part of longer history of an attempt to unify the churches under the German Evangelical Church, see Reichskirche.Kenneth Barnes, "Nazism, Liberalism and Christianity", University Press of Kentucky, Kentucky 1991. Withholding baptism from non-Aryans was enforced in most churches during the Nazi period, though not without some protest. Wilhelm Stapel (1882-1954) was a German theologian, who edited the Antisemitic monthly magazine Deutsches Volksstum Ernst Graf zu Reventlow (1869-1943) brother of Fanny zu Reventlow, German naval officer, journalist, and Nazi politician, a loyal supporter of the German Faith Movement. Herman Wirth (1885-1981), a Dutch-German historian, who co-founded the Ahnenerbe, alongside Himmler. Wolfram Sievers (1905-1948) Director of the above mention Ahnenerbe. Rudolf von Sebottendorf (1875-1945) was the founder of the Thule Society, a post-WW1 society that had many ideological similarities with Nazism and was interested in the occult. He converted to Sufi Islam and served as an Abwehr agent in Istanbul from 1942 to 1945, but was considered useless at his job, and later committed suicide. Karl Maria Wiligut (1866-1946), an Austrian occultist who was very involved in Himmler's SS Race and Settlement Main Office.

Others Richard Walther Darré (1895–1953), one of the leading Nazi blood and soil ideologists. He served as Reich Minister of Food and Agriculture from 1933 to 1942. Anton Drexler (1884–1942), German Nazi political leader of the 1920s. He joined the Fatherland Party during World War I. He was a poet and a member of the völkisch agitators who, together with journalist Karl Harrer, founded the German Workers' Party (DAP) in Munich with Gottfried Feder and Dietrich Eckart in 1919. Dietrich Eckart (1868–1923), who developed the ideology of a "genius higher human", based on writings by Lanz von Liebenfels. He was a member of the Nazi party.Nazi Ideology: Some Unfinished Business - BM Lane - Central European History, 1974 - jstor.org Gottfried Feder (1883–1941), economist and one of the early key members of the Nazi Party. He was their economic theoretician. It was his lecture in 1919 that drew Hitler into the party.Munich 1923, John Dornberg, Harper & Row, New York, 1982. pg 344 Joseph Goebbels (1887–1945) Goebbels, the Nazi propaganda minister, was perhaps the most intellectual of the major figures in Nazi Germany. Originally part of the more radical wing of Nazism under Gregor and Otto Strasser, Goebbels broke with them after Hitler took pains to personally indoctrinate Goebbels and convert him to support the mainstream of the party, which Hitler controlled. Erik Jan Hanussen (1889-1933) The documentary Hitler and the Occult describes how Hitler “seemed endowed with even greater authority and charisma” after he had resumed public speaking in March 1927. The narrator states that “this may have been due to the influence” of the clairvoyant performer and publicist Erik Jan Hanussen. "Hanussen helped Hitler perfect a series of exaggerated poses,” useful for speaking before a huge audience. The documentary then interviews Dusty Sklar about the contact between Hitler and Hanussen, and the narrator makes the statement about “occult techniques of mind control and crowd domination."Frei 1980: 85. In 1929, Hanussen predicted, for example, that Wilhelm II would return to Germany in 1930 and that the problem of unemployment would be solved in 1931.