The Corn Laws, import tariffs designed to support domestic British corn prices against competition from less expensive foreign-grain imports between 1815 and 1846, are introduced by the Importation Act 1815 and repealed by the Importation Act 1846.

These laws are often viewed as examples of British mercantilism, and their abolishment marks a significant step towards free trade.

The Corn Laws enhance the profits and political power associated with land ownership.