Moiynkum (; until 1997 Furmanovka) is a village (auyl) in southeastern Kazakhstan. It is the seat of Moiynkum District of Jambyl Region. Population:
The village is located by the Chu river, to the southeast of lake Kokuydynkol. It lies at the northeastern edge of the Moiynkum Desert.
Moiynkum has a steppe climate (Köppen: BSk), with hot summers and cold winters.