Kobbei (also Kobbai, Kubay or Kubayh[1]) is a former town in North Darfur of western Sudan, west of Al-Fashir.

At its peak in the 19th century it was a thriving town, the largest in Darfur, with a population of up to 8,000.

[2][3] It declined as the wells at the oasis dried up, and the caravans first slowed, due to conflicts with al-Zubayr Rahma Mansur to the south, and then stopped with the fall of the Darfur Sultanate in 1874.

Slaves from the south were a major component of the trade, as were ostrich feathers, camels, ivory and acacia tree gum.

When al-Zubayr Rahma Mansur acquired holdings in the Bahr el Ghazal, he diverted to Khartoum significant portions of the goods coming from the south.