Sarysu (Kazakh: Сарысу ауданы, Sarysu audany) is a district of Jambyl Region in south-eastern Kazakhstan.

The administrative center of the district is the town of Janatas.

Parts of it are in the lower basin of the Chu river, at the edge of the Moiynkum Desert.

Lakes Ulken Kamkaly and Sorkol are located in the district.

This Kazakhstan location article is a stub.