North Barito Regency (Indonesian: Kabupaten Barito Utara) is one of the thirteen regencies which divide the Central Kalimantan Province on the island of Kalimantan, Indonesia. It originally included much more of the northern part of the province, but on 10 April 2002 the larger northwestern part of the regency was split off to create a new Murung Raya Regency. Muara Teweh (in Teweh Tengah District) is the capital of North Barito Regency, which covers an area of 10,152.25 km. The population of North Barito Regency was 121,573 at the 2010 Census and 154,812 at the 2020 Census; the official estimate as at mid 2023 was 160,605 (comprising 83,228 males and 77,377 females).

At the 2010 Census, North Barito Regency consisted of six districts (kecamatan), but three additional districts were subsequently created by the splitting of existing districts. All nine are tabulated below with their areas and population totals from the 2010 Census and the 2020 Census; together with the official estimates as at mid 2023. The table also includes the locations of the district administrative centres, the number of administrative villages in each district (a total of 93 rural desa and 10 urban kelurahan), and its postal codes.

Kode Wilayah	Name of District (kecamatan)	Area in km	Pop'n Census 2010	Pop'n Census 2020	Pop'n Estimate mid 2023	Admin centre	No. of villages	Post codes
62.05.01	Montallat	694.63	10,604	12,146	12,271	Tumpung Laung II	10	73861
62.05.02	Gunung Timang	1,066.31	10,029	12,490	12,929	Kandui	16	73862
62.05.03	Gunung Purei	1,435.80	2,426	2,755	2,798	Lampeong	11	73871
62.05.04	Teweh Timur (East Teweh)	921.58	7,221	6,440	6,541	Benangin I	12	73881
62.05.05	Teweh Tengah (Central Teweh)	1,144.40	69,941	58,308	61,435	Muara Teweh	10	73814
62.05.07	Teweh Baru	808.70		22,096	23,125	Hajak	10	73814
62.05.08	Teweh Selatan (South Teweh)	481.17		15,269	15,682	Trahean	12	73814
62.05.06	Lahei	3,219.39	21,352	13,857	14,104	Lahei II	13	73852
62.05.09	Lahei Barat (West Lahei)	340.26		11,451	11,720	Benao Hulu	11	73853
	Totals	10,152.25	121,573	154,812	160,605	Muara Teweh	103

Note: (a) comprising 4 kelurahan (Montallat I, Montallat II, Tumpung Laung I and Tumpung Laung II) and 6 desa. (b) including 2 kelurahan.
(c) except the kelurahan of Melayu (with a post code of 73811) and the kelurahan of Lanjas (with a post code of 73812).
(d) the 2010 populations of the new Teweh Baru and Teweh Selatan Districts are included in the figure for Teweh Tengah District, from which they were split off (Teweh Baru District also acquired three villages from Teweh Timur District).
(e) except the kelurahan of Jambu (with a post code of 73813) and the villages of Gandring, Liangbuah and Panaen (with a post code of 73881).
(f) the 2010 population of the new Lahei Barat District is included in the figure for Lahai District, from which it was split off.

Religion as of the Indonesia 2010 census:

• Muslim 71.3%
• Protestant 11.6%
• Roman Catholic 5.0%
• Hindu 0.1%
• Buddhist 0.0%
• Confucian 0.0%
• Other 11.8%
• Not stated or not asked 0.2%

A new airport was built by Muara Teweh for a predicted initial operation in 2013. The airport covers 180 hectares area and will has 2,250 metres length and 30 metres width of runway to accommodate wide body aircraft. The new airport was built to replace Beringin Airport which cannot be expanded. Haji Muhammad Sidik Airport (IATA: HMS, ICAO: WAGB) is an airport located at Trinsing, South Teweh, North Barito Regency. The airport was inaugurated by Vice President Ma'ruf Amin and Minister of Transportation Budi Karya Sumadi on 30 March 2021.

0°59′00″S 115°06′00″E / 0.9833°S 115.1000°E / -0.9833; 115.1000