The Indiana State Fair is an annual fair held in Indianapolis, Indiana, usually in August. The first fair was held in October 1852, on the grounds of what became known as Military Park. The first Indiana State Fair on its present site along East 38th Street was held in 1892.

The state fair buildings and grounds are used for a variety of other shows when the fair is not being held. The largest building at the fairgrounds is the Indiana Farmers Coliseum. The fairgrounds are at the northwest corner of 38th Street and Fall Creek Parkway.