Ambia is a town in Hickory Grove Township, Benton County, Indiana. It is part of the Lafayette, Indiana Metropolitan Statistical Area, and its population at the 2010 census was 239.
The town was laid out by Ezekiel M. Talbot and his wife Marietta on February 22, 1875, and named for their daughter Ambia Talbot.
The town population predominantly comprises White Americans. A sizeable part of the population is Hispanic in origin.