A post office was established there in 1828 as Tariff, but the name was changed to Okeana on May 27, 1858, after the daughter of the Indian chief Kiatta, for whom a stream in Morgan Township is named. The town was laid out by the Rev. Benjamin Lloyd.
A History and Biographical Cyclopaedia of Butler County, Ohio with Illustrations and Sketches of Its Representative Men and Pioneers. Cincinnati, Ohio: Western Biographical Publishing Company, 1882.