Sui is a sub-district of Dera Bugti District in Balochistan, Pakistan. The Sui gas field is located near Sui town. Town of sui is at the corner where the provinces of Baluchistan, Sindh and Punjab meet. About 9 km from Punjab, 10 km from Sindh. River indus flows 25 km to the East of it. It is 40 km south of Dera Bugti. Sui has gas compression facilities from where Natural gas is pipe-lined to nearby Punjab and Sindh towns. It is also pipelined to Quetta the largest city of Balochistan about 200 miles away.
This town serves as the administrative center of Sui tehsil, a subdivision of the district, this town itself functions as a Union Council.