Waynesville is a village in Wayne Township, Warren County, Ohio, United States.

[3] Caesar Creek State Park is located 5 miles (8.0 km) east of the village.

Waynesville is served by the Mary L. Cook Public Library.

[6] It was named in honor of General “Mad” Anthony Wayne.

There were 1,196 housing units at an average density of 502.5 per square mile (194.0/km2).

29.0% of all households were made up of individuals, and 16.7% had someone living alone who was 65 years of age or older.

There were 1,037 housing units at an average density of 456.0 per square mile (176.1/km2).

24.8% of all households were made up of individuals, and 12.5% had someone living alone who was 65 years of age or older.