Langbein is a surname of German origin, meaning "long leg", and may refer to:
Annabel Langbein (born 1958), New Zealand celebrity cook, food writer and publisher August Friedrich Ernst Langbein (1757–1835), German humoristic writer Brenton Langbein (1928–1993), Australian violinist, conductor, and composer Dieter Langbein (1932–2004), German physicist Fritz Langbein (1891–1967), New Zealand civil engineer George F. Langbein (1842–1911), New York politician Hermann Langbein (1912-1995), Austrian resistance fighter (Spanish Civil War and Nazi Germany), Righteous Among the Nations J. C. Julius Langbein (1846–1910), New York politician and judge John H. Langbein (born 1941), Sterling Professor of Law and Legal History at Yale Law School Laura Langbein, American political scientist Otto Langbein (1910-1988), Austrian resistance fighter against Nazi Germany, chief editor of the Österreichisches Wörterbuch Martha Langbein (born 1941), German athlete