Samuel Gottlieb Linde (polonised Samuel Bogumił Linde; 11 or 24 April 1771, in Toruń – 8 August 1847, in Warsaw) was a linguist, librarian, and lexicographer of the Polish language. He was director of the Prussian-founded Warsaw Lyceum during its existence (1804–31), and an important figure of the Polish Enlightenment.