Maonan () is a district of Maoming, Guangdong province, China. Subdivisions include Hexi Subdistrict, Hedong Subdistrict, Xinhua Subdistrict, Zhanqian Subdistrict, Chengnan Subdistrict, Jintang Town, Gongguan Town, Xinpo Town, Zhensheng Town, Aotao Town, Meihua Town, Gaoshan Town, Shange Town, and Yangjiao Town.