Jian'ou is a county-level city in Nanping in northern Fujian province, China. Under the name Jianning (Kienning), it was formerly the seat of its own prefecture and was the namesake of its province.

A county-level municipality, county-level city or county city, formerly known as prefecture-controlled city, is a county-level administrative division of the People's Republic of China. County-level cities have judicial but no legislative rights over their own local law and are usually governed by prefecture-level divisions, but a few are governed directly by province-level divisions.