Carl Friedrich was a German-American professor and political theorist. Carl Friedrich may also refer to: Carl Friedrich Abel (1723–1787), German composer Carl Friedrich Bruch (1789–1857), German ornithologist Carl Friedrich Christian Fasch (1736–1800), German composer and harpsichordist Carl Friedrich Gauss (1777–1855), German mathematician and scientist Carl Friedrich Goerdeler (1884–1945), conservative German politician Carl Friedrich Heinrich Credner (1809–1876), German geologist Carl Friedrich Heinrich Graf von Wylich und Lottum (1767–1841), Prussian infantry general and minister of the State Carl Friedrich Meerwein (1737–1810), German civil engineer and aviation pioneer Carl Friedrich Nagelsbach (1806–1859), German classical scholar Karl Friedrich Otto Westphal (1833–1890), German neurologist and psychiatrist Carl Friedrich Philipp von Martius (1794–1868), German botanist and explorer Carl Friedrich Richard Förster (1825–1902), German ophthalmologist Carl Friedrich Roewer (1881–1963), German arachnologist Carl Friedrich von Ledebour (1785–1851), German-Estonian botanist Carl Friedrich von Siemens (1872–1941), German entrepreneur and politician Carl Friedrich von Weizsäcker (1912–2007), German physicist and philosopher Carl Friedrich Wenzel (circa 1740–1793), German chemist and metallurgist Carl Friedrich Wilhelm, 1st Prince of Leiningen (1724–1807), German nobleman Carl Friedrich Wilhelm Alfred Fleckeisen (1820–1899), German philologist and critic Carl Friedrich Zelter (1758–1832), German composer, conductor and teacher of music Carl Gustav Friedrich Hasselbach (1809–1882), member of the Prussian House of Lords Georg Amadeus Carl Friedrich Naumann (1797–1873), German mineralogist and geologist Hans Carl Friedrich von Mangoldt (1854–1925), German mathematician Johann Carl Friedrich Dauthe (1746–1816), German architect and etcher Johann Carl Friedrich Rellstab (1759–1813), German composer, writer, music publisher, and critic Otto Carl Friedrich Westphal (1800–1879), prominent physician See also Karl Friedrich (disambiguation) Carl Frederick (given name) Friedrich Carl (disambiguation)