Corn exchanges are distinct buildings which were originally created as a venue for corn merchants to meet and arrange pricing with farmers for the sale of wheat, barley, and other corn crops. The word "corn" in British English denotes all cereal grains, such as wheat and barley. With the repeal of the Corn Laws in 1846, a large number of corn exchanges were built in England, particularly in the corn-growing areas of Eastern England.

A corn exchange is a building where merchants trade grains. The word "corn" in British English denotes all cereal grains, such as wheat and barley; in the United States these buildings were called grain exchange. Such trade was common in towns and cities across England until the 19th century, but as the trade became centralised in the 20th century many such buildings were used for other purposes. Several have since become historical landmarks.