Hehn is a surname. Notable people with the surname include:
Carl Hehn (1821–1875), Baltic German agricultural scientist Hans-Jürgen Hehn (born 1944), German fencer Keri Hehn (born 1981), American swimmer Paul N. Hehn, American historian Sascha Hehn (born 1954), German actor
Places Hehn, a quarter of the city of Mönchengladbach, Germany
See also Hen and Henn