The Bolshaya Kheta (, "Great Kheta") is a river in Krasnoyarsk Krai, Russia. It is a left tributary of the Yenisey.
The source of the Bolshaya Kheta is in Lake Yelovoy. It flows roughly northeastwards and joins the Yenisey northwest of Dudinka. The Bolshaya Kheta is long, and the area of its basin is .