Mayi may refer to
Mayi, a surname Mayi (马邑, "Horse Town"), a former Chinese town in what is now Shuozhou, Shanxi Mayi clan, a clan of Indian Muslims
See also Battle of Mayi (133 BC) between Han China and the Xiongnu Mayi Bas, a village in Iran Mbuji-Mayi, a city in the Democratic Republic of Congo Eacles mayi, a moth Taranis mayi, a sea snail Mayi-Mayi, another name for Mai-Mai, a community-based militia group in the Democratic Republic of the Congo Mayi-Kulan and Mayi-Kutuna languages of Australia Ma-i, an ancient Philippine state