The Nuba Mountains, also referred to as the Nuba Hills, is an area located in South Kordofan, Sudan. The area is home to a group of indigenous ethnic groups known collectively as the Nuba peoples. In the Middle Ages, the Nuba mountains had been part of the Nubian kingdom of Alodia. In the 18th century, they became home to the kingdom of Taqali that controlled the hills of the mountains until their defeat by Mahdi Muhammad Ahmad. After the British defeated the Mahdi army, Taqali was restored as a client state. Infiltration of the Messiria tribe of Baggara Arabs has been influential in modern conflicts. Up to 1.5 million people live in the mountains, mostly ethnic Nuba, with a small minority of Baggara.

The Nuba people are indigenous inhabitants of central Sudan. The Nuba are made up of 50 various indigenous ethnic groups who inhabit the Nuba Mountains of South Kordofan state in Sudan, encompassing multiple distinct people that speak different languages which belong to at least two unrelated language families. Since 2011, when the southern part of Sudan became an independent state as South Sudan, the Nuba now live in the southern part of Sudan. Estimates of the Nuba population vary widely; the Sudanese government estimated that they numbered 2.07 million in 2003.