Cobourg (2001 population 17,172) is a town on Lake Ontario about 70 km east of Toronto.

The town was founded by United Empire Loyalists in 1798. In the late 19th century and early 20th century wealthy Americans built enormous homes there, many of which still stand today.

Food processing is the largest industry in Cobourg, which is home to operations of companies like Kraft, Coca Cola, and Weetabix.