The Chulym (Russian: Чулым) is a river in Krasnoyarsk Krai, the Republic of Khakassia, and Tomsk Oblast in Russia, a right tributary of the Ob River. The length of the river is 1,799 kilometers (1,118 mi). The area of its basin is 134,000 square kilometers (52,000 sq mi). The Chulym flows into the Ob in Ust-Chulym.