Mengcheng County () is a county in the northwest of Anhui Province, China. It is under the administration of Bozhou city, bordering Lixin County. It is famous for its beef production and for Zhuangzi, 4th century BCE philosopher. , a well-known comedian, used to serve as deputy magistrate of Mengcheng County.
In the present, Mengcheng County has 13 towns, 2 townships and 2 others.