Tilsit (disambiguation)

Tilsit may refer to:
 * Tilsit, German name of the town of Sovetsk in Kaliningrad Oblast, Russia; in the former East Prussia
 * Tilsit Éditions, a French game publisher
 * Tilsit cheese, a light yellow semi-hard smear-ripened cheese
 * Treaties of Tilsit, two agreements signed by Napoleon I of France in 1807 in the aftermath of his victory at Friedland
 * Act of Tilsit, an act by Prussian Lithuanians signed in 1918
 * Tilsit, Missouri, a community in the United States