Labuhanbatu Regency لابوهن باتو Labuhanbatu
Regency
Regent office of Labuhanbatu in Rantauprapat
Coat of arms
Motto(s):  Ika Bina En Pabolo (It's Built It's Repaired)
Coordinates: 2°16′00″N 100°06′00″E / 2.2667°N 100.1000°E / 2.2667; 100.1000
Country	Indonesia
Province	North Sumatra
Regency seat	Rantau Prapat
Government
• Regent	Vacant
• Chairwoman of Council of Representatives	Meika Riyanti Siregar (Golkar)
• Vice Chairpeople of Council of Representatives	Abdul Karim Hasibuan (Gerindra), Juraidah Harahap (People's Conscience Party) and M Rasyid Rangkuti (Nasdem)
Area
• Total	2,561.38 km2 (988.95 sq mi)
Population  (mid 2023 estimate)[1]
• Total	513,826
• Density	200/km2 (520/sq mi)
Time zone	UTC+7 (WIB)
Website	www.labuhanbatukab.go.id

Labuhanbatu Regency (Kabupaten Labuhanbatu, alternatively Kabupaten Labuhan Batu), alternatively written in space as Labuhan Batu Regency, is a regency of North Sumatra Province in Indonesia. Its administrative seat is Rantau Prapat. An original regency (formed on 7 November 1956) of the province, it had an area of 9,703 km² as at early 2008, prior to the separation out of its southern and its north-western districts respectively to create the new South Labuhanbatu and North Labuhanbatu Regencies on 21 July 2008 (in accordance with Laws Nos. 22 and 23 respectively of that year).

Subsequently, the reduced regency has an area of 2,561.38 km² and had a census population in 2010 of 415,248,^[2] which rose to 493,899 at the 2020 Census;^[3] the official estimate as at mid 2023 was 513,826 (comprising 260,702 males and 253,124 females).^[1]

The Panai Estuary, which consists of the Bilah River and Barumun River are located in this regency, and it was the seat of the ancient Buddhist trading kingdom of Pannai, ca. 11th to 14th centuries, connected to the Bahal temple in North Padang Lawas Regency.

Following the separation off of thirteen districts (kecamatan) to form the new South Labuhanbatu and North Labuhanbatu Regencies on 21 July 2008 (in accordance with the enabling Laws enacted on 24 June 2008), the reduced regency is now divided administratively into nine districts, tabulated below with their areas and their populations at the 2010 Census^[2] and the 2020 Census,^[3] together with the official estimates as at mid 2023.^[1] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 75 rural desa and 23 urban kelurahan - the latter chiefly in the town of Rantau Prapat), and its post code.

Notes: (a) except the desa of Kampung Baru, which has a post code of 21415. (b) including the two kelurahan of Negeri Lama and Negeri Baru.
(c) including the offshore island of Pulau Ongah Labuhan. (d) including the kelurahan of Labuhan Bilik.
(e) including the offshore island of Pulau Sikantan. (f) including the kelurahan of Sei Berombang.
(g) comprises 9 kelurahan - Bakaran Batu, Danobale, Lobu Sona, Perdamean, Sidorejo, Sigambal, Sioldengan, Ujung Bandar and Ujung Kompas. (h) comprises 10 kelurahan - Aek Paing, Bina Raga, Cendana, Kartini, Padang Bulan, Padang Matinggi, Pulo Padang, Rantau Prapat, Sirandorung and Siringo-ringo.