| Bolshoy Zelenchuk | |
| Pushpin Map: | Russia Stavropol Krai#Russia Krasnodar Krai#Caucasus mountains#European Russia |
| Mouth: | Kuban |
| Mouth Coordinates: | 44.6269°N 41.9336°W |
| Length: | 158km (98miles) |
| Basin Size: | 2730km2 |
The Bolshoy Zelenchuk (ru|Большой Зеленчук, abq|Йынджьыгь-Ду, ady|Инжыджышхуэ, krc|Уллу Инджик|translit=Ullu İncik, nog|Уьйкен Йилиншик|translit=Üyken Yilinşik) is a river in the North Caucasus, Russia. It is a left tributary of the Kuban into which it flows at Nevinnomyssk. It is long, and has a drainage basin of .[1]