Lebanon is a city in and the county seat of Warren County, Ohio, United States, in the state's southwestern region, within the Cincinnati metropolitan area. The population was 20,033 at the 2010 census. The city has a symphony orchestra and chorus.
Lebanon is in the Symmes Purchase. The first European settler in what is now Lebanon was Ichabod Corwin uncle of Ohio Governor Thomas Corwin who came to Ohio from Bourbon County, Kentucky and settled on the north branch of Turtle Creek in March 1796. The site of his cabin is now on the grounds of Berry Intermediate School on North Broadway and is marked with a monument erected by the Warren County Historical Society.
The town was laid out in September 1802 on land owned by Ichabod Corwin, Silas Hurin, Ephraim Hathaway, and Samuel Manning in Sections 35 and 35 of Town 5, Range 3 North and Sections 5 and 6 of Town 4, Range 3 North of the Between the Miami Rivers Survey. Lebanon was named after the Biblical Lebanon because of the many juniper or Eastern Red cedar trees there, similar to the Lebanon Cedar. It is known today as "The Cedar City".
City legend has it that Lebanon didn't grow as large as Cincinnati or Dayton because of the 'Shaker Curse.' During their migration, the Shakers decided an area outside of town was a suitable place for them to create a homeland for themselves.