Langhans is a German surname. Notable people with the surname include:
Carl Gotthard Langhans (1732–1808), Prussian architect Carl Ferdinand Langhans (1782–1869), Prussian architect Magda Langhans (1903–1987), German political activist and politician Paul Langhans (1867–1952), German geographer and cartographer Rainer Langhans (born 1940), German writer and filmmaker Theodor Langhans (1839–1915), German pathologist