| Oghulchak Khan | |
|---|---|
| Khagan of Karakhanids | |
| Reign | 9th century |
| Predecessor | Bazir Arslan Khan |
| Successor | Sultan Satuq Bughra Khan |
| House | Karakhanid dynasty |
| Father | Bilge Kul Qadir Khan |
| Religion | Tengriism |
Oghulchak Arslan Khan (9th century) was the last Karakhanid ruler to follow the native Turkic religion of Tengrism. He was a lesser Bughra Khan during his elder brother Bazir Arslan's rule in the west. He was titled Arslan Khan after his ascension to the throne.