Lebanon is a city in and the county seat of Laclede County, Missouri, United States. The population was estimated at 15,013 at the time of the 2020 census. The Lebanon Micropolitan Statistical Area consists of Laclede County. The original name of Lebanon, Missouri was Wyota, named after the original Native Americans that settled in the area. Later, Reverend Benjamin Hooker changed the name to his hometown in Lebanon, Tennessee.