The Chicago River and Harbor Convention of 1847, also known as the Harbor and River Convention of 1847, was a political convention held in Chicago, Illinois, from July 5 to July 7, 1847, to express support for federal funding of internal improvements. Noted for its size and pageantry, the event drew almost 2,500 delegates from nineteen states. Although not expressly partisan in nature, it proved to be important for the elaboration of Whig beliefs.