Kashkanteniz (Kazakh: Қашқантеңіз) is a lake in the Moiynkum District, Jambyl Region, Kazakhstan.

[1] The lake is located 10 kilometers (6.2 mi) to the NNW of Kashkanteniz railway station.

The lake stretches roughly from northwest to southeast for more than 22 kilometers (14 mi).

On average its surface increases right after the melting of the snows in the spring.

Sometimes strong winds blowing from the northeast spray Balkhash surface water that reaches the marshes at the southern end of the lake.