Shelbyville is a city in Addison Township, Shelby County, Indiana, United States. The population was 19,191 at the 2010 census. The city is the county seat of Shelby County. The current mayor is Republican Scott Furgeson.
Shelbyville was named in honor of Isaac Shelby, Kentucky governor and Indian fighter.
Shelbyville was incorporated January 21, 1850, by a special act of the Legislature, according to county histories.