Mendong is a historical district in the Qinhuai District of Nanjing, Jiangsu, China. It comprises the southern part of the city within the walls and to the east of the Zhonghua Gate, in contrast to the "Menxi" area to the west of the Gate of China. The east and south sides of Mendong are bordered by the City Wall of Nanjing, extending westward to Zhonghua Road. The Qinhuai River runs through the entire area.