Mamay Khan (died 1549) was Bey of the Nogai Horde from 1541 to 1549, succeeding Sidakhmet and preceding Yosuf Khan. The son of Musa Bey, he fought against the Kazakh invasion of 1519 and came to control Bashkortostan and the Siberian Khanate. In 1535, he battled the Siberians, and he came to rule over the central part of the Nogai Horde in the late 1530s. In 1541, he seized control of the Nogai Horde in a coup and died in 1549.