'Old Hickory' was the nickname of Andrew Jackson, the seventh President of the United States. The nickname was given to him due to his tough and strong-willed personality, as well as his military career where he was known for his leadership during the War of 1812. Jackson was also known for his populist and controversial policies as President, including the forced removal of Native Americans from their ancestral lands, the dissolution of the Bank of the United States, and the expansion of the power of the executive branch.