Mary Ann Aldersey (simplified Chinese: 艾迪绥; traditional Chinese: 艾迪綏, 24 June 1797 – 1868) was the first Christian missionary woman (married or single) to serve in China proper (excluding Macau & Hong Kong, where Henrietta Shuck had been working earlier). She founded a school for girls in Ningbo, Zhejiang. Her pioneering the field of mission work for single women in China was the most remarkable outcome of her life.