Langdon is a masculine given name which may refer to:
Langdon Cheves (1776–1857), American politician, lawyer and businessman Langdon Brown Gilkey (1919–2004), American theologian Langdon Lea (1874–1937), American college football Hall of Fame player and coach Langdon Elwyn Mitchell (1862–1935), American Broadway playwright Langdon Winner (born 1944), American academic and philosopher of technology