The Ulken Kundyzdy (Kazakh: Үлкен Құндызды) is a river in the Sarybel and Nura districts, Karaganda Region, Kazakhstan.

[1] The Ulken Kundyzdy river is one the main tributaries of the Nura.

[1] The Ulken Kundyzdy has its sources in the Kazakh Uplands, a little to the north of Kunduzdy village, northwest of Temirtau.

It originates on the southern slopes of Mount Koyandy and flows roughly southwestwards and westwards along its course.

[1] Some of the fish species found in the Ulken Kundyzdy include crucian carp, perch and gudgeon.