The Beysug (Russian: Бейсу́г) is a river in Krasnodar Krai of Russia. It is 243 kilometres (151 mi) long, with a drainage basin of 5,190 square kilometres (2,000 sq mi).[1] It flows into the Sea of Azov through the Beysugsky Liman. To the south is the river Kuban, to the immediate north the Chelbas [es; ru], and further to the north the Yeya.