Ad-Damazin is the capital city of Blue Nile, Sudan. It is the location of the Roseires Dam and power generation plant.

Ad-Damazin is served by a terminal station of a branch line of the national railway network. However, the train service to Ad-Damazin has been discontinued many years ago. Instead the town can be reached from Khartoum via a decent tarmac road and by plane.