| Beysug | |
| Pushpin Map: | Russia Krasnodar Krai#European Russia |
| Mouth: | Sea of Azov |
| Mouth Coordinates: | 46.0422°N 38.5786°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 243km (151miles) |
| Basin Size: | 5190km2 |
The Beysug (Russian: Бейсу́г) is a river in Krasnodar Krai of Russia. It is 243km (151miles) long, with a drainage basin of 5190km2.[1] It flows into the Sea of Azov through the Beysugsky Liman. To the south is the river Kuban, to the immediate north the, and further to the north the Yeya.