Friedrich von Hardenberg, German poet and philosopher, better known as Novalis
Friedrich Schiller, German poet and philosopher
Friedrich Smetana, Czech composer who pioneered the development of a musical style that became closely identified with his country's aspirations to independent statehood, regarded in his homeland as the father of Czech music
Philosophy
Friedrich Engels, German political philosopher, communist, social scientist, journalist and businessman, developer of what is now known as Marxist theory and The Communist Manifesto
Friedrich Hayek, Austrian economist and political philosopher
Friedrich Nietzsche, German philosopher, cultural critic, composer, poet, philologist, and Latin and Greek scholar whose work has exerted a profound influence on modern intellectual history
Friedrich Schiller, German poet, philosopher, physician, historian and playwright
Other fields
Friedrich Wöhler, German chemist who synthesised urea
Friedrich Ludwig Abresch, German born Dutch philologist
Friedrich Bergius, German chemist
Johann Friedrich Blumenbach, German physician, naturalist, physiologist, and anthropologist, one of the first to explore the study of the human being as an aspect of natural history
Friedrich Buchardt, Baltic German SS functionary who commanded Vorkommando Moskau, one of the divisions of Einsatzgruppe B, Post-war worked for MI6 and then, presumably, for the CIA
Friedrich Robert Faehlmann, Estonian writer, medical doctor and philologist, founder of University of Tartu and one of the authors of Kalevipoeg
Friedrich Karl Florian, Gauleiter of Düsseldorf in Nazi Germany
Friedrich Fröbel, German pedagogue
Friedrich Fromm, German army officer, Commander in Chief of the Reserve Army, in charge of training and personnel replacement for combat divisions of the German Army, executed for failing to act against the plot of 20 July 1944 to assassinate Hitler
Friedrich Geisshardt, German World War II flying ace
Friedrich Jeckeln, German SS commander during the Nazi era, Higher SS and Police Leader in the occupied Soviet Union during World War, commander of one of the largest collection of Einsatzgruppen death squads, personally responsible for ordering and organizing the deaths of over 100,000 Jews, Romani, and others designated by the Nazis as "undesirables", the principal perpetrator of Rumbula massacre
Friedrich Kellner, mid-level official in Germany who worked as a justice inspector in Mainz and Laubach, best known for his diaries that got published in 2011
Friedrich Reinhold Kreutzwald, Estonian writer, one of the authors of Kalevipoeg
Friedrich-Wilhelm Krüger, Nazi official and high-ranking member of the SA and the SS, Higher SS and Police Leader in the General Government in German-occupied Poland and one of the major perpetrators of the Holocaust
Friedrich Loeffler, German bacteriologist
Friedrich Kasimir Medikus, German physician and botanist
Friedrich Olbricht, German general during World War II and one of the plotters involved in the 20 July Plot, an attempt to assassinate Hitler in 1944
Friedrich Panzinger, German SS officer during the Nazi era, head of the Reich Main Security Office Amt IV A, from September 1943 to May 1944 and the commanding officer of Einsatzgruppe A in the Baltic States and Belarus
Friedrich Paulus, German field marshal during World War II who commanded the 6th Army during the Battle of Stalingrad, one of the principal commanders of Operation Uranus
Friedrich von Rabenau, German General of the Artillery, theologian, and opponent of National Socialism
Friedrich Ratzel, German geographer and ethnographer
Friedrich "Fritz" Sauckel, German Nazi politician, Gauleiter of Thuringia and the General Plenipotentiary for Labour Deployment from March 1942 until the end of the Second World War
Friedrich von Scholtz, German general, military leader and army commander
Friedrich Sämisch, German chess player
:de:Friedrich Stieve|Friedrich Stieve, German writer and historian
