Armin Mohler (12 April 1920 – 4 July 2003) was a Swiss political philosopher and journalist, known for his works on the Conservative Revolution. He is widely seen as the father of the Neue Rechte (New Right), the German branch of the European New Right.

Armin Mohler was born in Basel, Switzerland, on 12 April 1920, the second child of a Swiss railway official. After passing his Abitur in 1938, he studied art history, German studies and philosophy at the University of Basel. As a student, he wrote articles on art history and film criticism for the Baseler Nationalzeitung. At that time, he espoused left radical and pacifist views, but the reading of authors like Oswald Spengler, Friedrich Nietzsche, Thomas Mann, and Ernst Jünger, as well as his military service in the Swiss army, increasingly eroded his ideological certainties. Germany's invasion of the Soviet Union in 1941–42 led to a political "awakening experience". Enlisted during World War II, he deserted in February 1942 and crossed the border with Germany in order to join the Waffen-SS and fight against communism. He underwent training, but his application was later turned down.

At the end of 1942 he returned to Basel and was sentenced to a year in prison for illegal border crossing and dereliction of duty. After his release and recovery from tuberculosis, Mohler devoted himself to his dissertation. In 1950, he published Die Konservative Revolution in Deutschland 1918-1932 (The Conservative Revolution in Germany, 1918-1932), the product of his doctoral thesis under the supervision of German-Swiss philosopher Karl Jaspers. The work helped spread the popularity of the concept of "Conservative Revolution" to a wider audience.

From 1949 to 1953, Mohler served as Ernst Jünger's private secretary. Between 1953 and 1961, he worked as a foreign correspondent in Paris, mainly for the newspapers Die Tat, Die Zeit, Die Furche and Christ und Welt. There, he became enamored of Gaullism. Under the pseudonym "Michael Hintermwald", he also published in Gerhard Frey's far-right newspaper Deutschen National-Zeitung. Mohler moved to Munich in 1961 to work for the Carl Friedrich von Siemens Foundation. He then served as its managing director from 1964 until its retirement in 1985. Mohler identified Franz Josef Strauss, a Bavarian Christian social union politician, as hopeful right-wing candidate within the European tradition of Gaullism. Mohler's hope was, that Strauss would lead a right-wing national-revolutionary mass movement. During the Spiegel affair, Strauss did acknowledge, that he had read Mohler, and that his Gaullist stance informed the continuous confrontation with the political left in Bavaria.

In 1967, Mohler received the Konrad Adenauer Prize for his work in journalism.

In the 1980s Mohler actively promoted French Nouvelle Droite philosopher Alain de Benoist. He wrote the introduction to de Benoist's Kulturrevolution von rechts (Cultural Revolution from the Right) when it appeared in West Germany in 1985. Mohler had been introduced to French far-right ideas during his time in France.

Mohler remained an unrepentant admirer of Italian and Spanish fascism until the end of his life. Mohler died on 4 July 2003 in Munich. His eulogy was given by the then 32-year-old Götz Kubitschek, who soon became one of the most important German New Right figures.

In 2025, the historian Maik Tändler published a book about Mohler and his influence, Armin Mohler und die intellektuelle Rechte in der Bonner Republik (lit. 'Armin Mohler and the Intellectual Right in the Bonn Republic').