Swen Hans Wilhelm Heyck (19 September 1891 in Freiburg, Baden – 24 June 1972 in Kempfenhausen, Bavaria) was a German writer and poet.
Hans Heyck was a son of the historian and editor Eduard Heyck (1862–1941), a son-in-law of the journalist and editor (Norddeutshe Allgemeine Zeitung) Otto Runge (1864–1940), a grandson of the novelist and poet Wilhelm Jensen (1837–1911), a great-grandson of the mayor of the city of Kiel, finance minister of Schleswig-Holstein and administrator (Landvogt) of the island of Sylt, Schwen Hans Jensen (1795–1855), and a great-grandson of the journalist, writer and literary historian Johann August Moritz Brühl (1819–1877).
After a three-year internship at an import-export company in Hamburg, he emigrated in 1913 to Argentina; he returned to Germany, however, in the fall of 1914 after the start of First World War and served first with an artillery unit and later as a pilot and flight instructor in France and West Prussia.
In the Second World War Heyck was drafted into the German Luftwaffe and served with an anti-aircraft unit.
After working in various occupations, among others as a full-time employee of the German National People's Party in East Frisia, a hobby farmer in Bavaria and teacher at an agricultural college in Diez, Heyck in 1931 became a full-time writer in Bad Aibling and from 1935 also in Reit im Winkl.