The treaty that ended the War of 1812 was the Treaty of Ghent.

The War of 1812 officially ended with the Treaty of Ghent, signed on December 24, 1814. This treaty restored relations between the United States and Great Britain to their pre-war status, essentially resetting territorial boundaries and addressing issues that had led to the conflict. Although the treaty did not resolve all underlying tensions, it marked a significant step toward peace. The news of the treaty arrived in the U.S. after the decisive Battle of New Orleans, which further solidified American resolve and national identity. The Treaty of Ghent is an essential milestone in early American diplomatic history.