Batanghari (Indonesian: Kabupaten Batang Hari, literally "Stick of the Day Regency")is a regency of Jambi Province in Sumatra, Indonesia. It originally covered a wider area, but on 4 October 1999 this was split between a new Muaro Jambi Regency in the east (surrounding the city of Jambi) and a reduced Batang Hari Regency in the west, which now covers an area of 5,804.83 km. It had a population of 241,334 at the 2010 census and 301,700 at the 2020 census; the official estimate as at mid 2023 was 312,279 (comprising 159,573 males and 153,156 females). The administrative capital is the town of Muara Bulian(Bulian Estuary or Bulian Delta).

The regency is split administratively into eight districts (kecamatan), listed below with their areas and their populations at 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 centres, the number of villages in each district (a total of 110 rural desa and 14 urban kelurahan), and their post 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
15.04.01	Mersam	801.90	26,396	33,246	34,528	Kembang Paseban	18	36654
15.04.06	Maro Sebo Ulu	906.33	29,305	39,588	41,959	Simpang Sungai Rengas	17	36652
15.04.04	Batin XXIV	904.14	25,423	31,749	32,892	Muara Jangga	17	36656
15.04.02	Muara Tembesi	419.77	27,233	33,894	35,079	Kampung Baru	14	36653
15.04.03	Muara Bulian	417.97	55,132	68,960	71,475	Muara Bulian	21	36611
15.04.07	Bajubang	1,203.51	35,249	41,957	42,886	Bajubang	10	36615
15.04.08	Maro Sebo Ilir	129.06	12,946	15,321	15,627	Terusan	8	36655
15.04.05	Pemayung	1,022.15	29,650	36,985	38,303	Jembatan Mas	19	36657
	Total Regency	5,804.83	241,334	301,700	312,279	Muara Bulian	124

Notes: (a) including the kelurahan of Kembang Paseban. (b) including the kelurahan of Simpang Sungai Rengas.
(c) including the two kelurahan of Durian Luncuk and Muara Jangga. (d) including the kelurahan of Kampung Baru and Pasar Muara Tembesi.
(e) including the five kelurahan of Muara Bulian, Pasar Baru, Rengas Condong, Sridadi and Teratai.
(f) except the desa of Rambahan and kelurahan of Teratai (which share the postcode of 36612), the kelurahan of Muara Bulian (postcode of 36613) and the kelurahan of Sridadi (postcode of 36614).
(g) including the kelurahan of Bajubang. (h) including the kelurahan of Terusan. (i) including the kelurahan of Jembatan Mas.

• Muara Bulian – regency capital
• Paalmerah
• Talang Pelempang
• Pinangtinggi
• Bejubang
• Tempino
• Talang Gudang
• Muara Bahar

• Official website

2°01′00″S 103°19′59″E / 2.01667°S 103.333°E / -2.01667; 103.333