Arnim is a German surname, often preceded by the nobiliary particle "von", meaning "of". Notable people with the surname include:
Adolf von Arnim-Boitzenburg (1832–1887), German landowner and politician Adolf Heinrich von Arnim-Boitzenburg (1803–1868), German statesman Arnulf von Arnim (born 1947), German classical pianist and teacher Bernd von Arnim (died 1917), German naval officer Bernd von Arnim (politician) (1850–1939), Prussian politician, agriculture minister Bettina von Arnim (1785–1859), German writer and novelist Daniela von Arnim (born 1964) German bridge champion Elizabeth von Arnim (1866–1941), British novelist Ferdinand von Arnim (1814–1866), German architect and watercolour-painter Gisela von Arnim (1827–1889), German writer Gustav von Arnim (1829–1909), German general of the Infantry Hans von Arnim (1859–1931), German philologist Hans von Arnim (general) (1846–1922), German general Hans Georg von Arnim-Boitzenburg (1583–1641), German field marshal, diplomat, and politician Hans-Jürgen von Arnim (1889–1962), German World War II general Heinrich Alexander von Arnim (1798–1861), Prussian statesman. Heinrich Friedrich von Arnim-Heinrichsdorff-Werbelow (1791–1859), Prussian statesman Harry von Arnim (1824–1881), German diplomat Iris von Arnim (born 1945), German fashion designer Karl Gustav Theodor von Arnim (1796–1877), Prussian general Ludwig Achim von Arnim (1781–1831), German poet and novelist
See also Friedrich Sixt von Armin (1851–1936), German World War I general Hans-Heinrich Sixt von Armin (1890–1952), German World War II general Arnim family, German noble family