Central Hulu Sungai Regency is one of the regencies in the Indonesian province of South Kalimantan. The area is 1,770.77 km² and the population was 243,460 at the 2010 Census and 258,721 at the 2020 Census; the official estimate as at mid 2023 was 268,360. The administrative centre is the town of Barabai.