| South Halmahera Regency | |
| Native Name: | Kabupaten Halmahera Selatan |
| Motto: | Saruma (One House) |
| Settlement Type: | Regency |
| Pushpin Map: | Indonesia_Bacan#Indonesia_Maluku#Indonesia_Halmahera#Indonesia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Bacan, Maluku, Halmahera and Indonesia |
| Subdivision Type: | Country |
| Subdivision Name: |  Indonesia |
| Subdivision Type1: | Province |
| Subdivision Type3: | Capital |
| Subdivision Name3: | Labuha |
| Leader Title: | Regent |
| Leader Name: | Bahrain Kasuba |
| Leader Title1: | Vice Regent |
| Leader Name1: | Iswan Hasjim |
| Area Total Km2: | 8779.32 |
| Population As Of: | mid 2023 Estimate |
| Population Note: | [1] |
| Population Total: | 255384 |
| Population Density Km2: | auto |
| Timezone: | IEST |
| Utc Offset: | +9 |
| Coordinates: | -0.3955°N 127.9083°W |
| Area Code Type: | Area code |
| Area Code: | (+62) 927 |
South Halmahera Regency (Indonesian: Kabupaten Halmahera Selatan) is a regency of North Maluku Province, Indonesia. It lies partly on Halmahera Island (occupying most of the southern peninsula of that island) and partly on smaller islands to the west and south of Halmahera. It covers a land area of 8,779.32 km2, and at the 2010 Census it had a population of 198,911 people,[2] while the 2020 Census showed that this had risen to 248,395[3] and the official estimate in mid 2023 was 255,384[4] The capital lies at the town of Labuha on Bacan Island.
Besides the southern part of Halmahera Island, the regency includes a number of archipelagoes and islands. These comprise:
The regency is divided into thirty districts (kecamatan), tabulated below with their areas and their populations at the 2010 Census[7] and 2020 Census,[8] together with the official estimates for mid 2023.[9] The table also includes the name of the administrative centre and the number of administrative villages (all classed as rural desa) and of named islands in each district and its post code.
| Kode Wilayah | Name of District (kecamatan) | English name | Area in km2 | Pop'n Census 2010 | Pop'n Census 2020' | Pop'n Estimate mid 2023 | Admin centre | No. of villages | No. of islands | Post code | Island or Group | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 82.04.05 | Obi Selatan | South Obi | 1,083.48 | 12,128 | 12,178 | 15,299 | Wayaloar | 8 | 4 | 97792 | Obi Islands | |
| 82.04.06 | Obi | 1,073.15 | 14,125 | 20,538 | 18,067 | Laiwui | 9 | 12 | 97792 | Obi Islands | ||
| 82.04.28 | Obi Barat | West Obi | 94.53 | 3,586 | 5,211 | 5,704 | Jikohai | 6 | 6 | 97792 | Obi Islands | |
| 82.04.29 | Obi Timur | East Obi | 636.23 | 3,389 | 3,705 | 4,040 | Sum | 4 | 14 | 97792 | Obi Islands | |
| 82.04.30 | Obi Utara | North Obi | 160.69 | 8,227 | 9,128 | 10,072 | Madapolo | 7 | 6 | 97792 | Obi Islands | |
| 82.04.21 | Bacan Timur Selatan | Southeast Bacan | 321.13 | 6,460 | 7,493 | 8,352 | Wayaua | 7 | 1 | 97791 | Bacan Islands | |
| 82.04.22 | Bacan Timur Tengah | East Central Bacan | 276.28 | 5,229 | 6,158 | 6,595 | Bibinoi | 7 | 2 | 97791 | Bacan Islands | |
| 82.04.07 | Bacan Timur | East Bacan | 463.50 | 9,051 | 12,794 | 13,649 | Babang | 10 | 8 | 97791 | Bacan Islands | |
| 82.04.17 | Bacan Selatan | South Bacan | 169.21 | 13,265 | 19,560 | 21,153 | Mandaong | 10 | align="center" | - | 97791 | Bacan Islands |
| 82.04.08 | Bacan | 304.69 | 19,092 | 27,045 | 28,468 | Labuha | 14 | 3 | 97791 | Bacan Islands | ||
| 82.04.14 | Bacan Barat Utara | Northwest Bacan | 264.94 | 4,096 | 5,010 | 5,099 | Yaba | 8 | 1 | 97791 | Bacan Islands | |
| 82.04.09 | Bacan Barat | West Bacan | 180.78 | 3,549 | 4,327 | 4,665 | Indari | 7 | 49 | 97791 | Bacan Islands | |
| 82.04.18 | Batang Lomang (a) | Batang Lomang Islands | 55.81 | 6,177 | 7,655 | 7,858 | Bajo | 8 | 13 | 97790 | Batang Lomang Islands | |
| 82.04.19 | Mandioli Selatan | South Mandioli | 138.81 | 5,798 | 6,936 | 7,237 | Jiko | 6 | align="center" | - | 97791 | Mandioli |
| 82.04.20 | Mandioli Utara | North Mandioli | 96.79 | 2,990 | 3,809 | 3,880 | Indong | 6 | 7 | 97791 (b) | Mandioli | |
| 82.04.16 | Kasiruta Timur | East Kasiruta | 247.93 | 3,847 | 4,865 | 5,062 | Loleojaya | 8 | 6 | 97790 | Kasiruta | |
| 82.04.15 | Kasiruta Barat (c) | West Kasiruta | 272.98 | 4,521 | 5,865 | 5,968 | Palamea | 10 | 25 | 97790 | Kasiruta | |
| 82.04.11 | Kayoa Barat (d) | West Kayoa | 27.07 | 3,469 | 4,336 | 4,153 | Busua | 4 | 5 | 97781 | Kayoa Islands | |
| 82.04.02 | Kayoa | 87.62 | 8,180 | 9,057 | 8,731 | Guruapin | 14 | 49 | 97780 | Kayoa Islands | ||
| 82.04.12 | Kayoa Selatan | South Kayoa | 26.06 | 5,856 | 6,822 | 6,689 | Laluin | 6 | 9 | 97780 | Kayoa Islands | |
| 82.04.13 | Kayoa Utara | North Kayoa | 39.22 | 2,671 | 2,896 | 2,813 | Laromabati | 6 | 3 | 97781 | Kayoa Islands | |
| 82.04.10 | Makian Barat | West Makian | 35.54 | 3,417 | 3,968 | 3,679 | Mateketen | 7 | align="center" | - | 97784 | Makian |
| 82.04.01 | Pulau Makian | Makian Island | 55.50 | 8,977 | 10,032 | 8,846 | Kota | 15 | 1 | 97785 | Makian | |
| 82.04.24 | Gane Barat Utara | Northwest Gane | 501.69 | 6,027 | 7,336 | 7,217 | Dolik | 12 | align="center" | - | 97789 | Halmahera |
| 82.04.04 | Gane Barat | West Gane | 493.67 | 7,972 | 10,019 | 9,834 | Saketa | 10 | 7 | 97782 | Halmahera | |
| 82.04.23 | Gane Barat Selatan | Southwest Gane | 252.55 | 5,545 | 6,796 | 7,017 | Gane Dalam | 8 | 19 | 97782 | Halmahera | |
| 82.04.25 | Kepulauan Joronga | Joronga Islands | 148.93 | 5,264 | 7,203 | 7,117 | Kukupang | 7 | 30 (e) | 97786 | Joronga Islands | |
| 82.04.26 | Gane Timur Selatan (f) | Southeast Gane | 304.15 | 3,478 | 4,104 | 4,012 | Gane Luar | 5 | 85 | 97787 | Halmahera | |
| 82.04.27 | Gane Timur Tengah | East Central Gane | 309.67 | 3,796 | 4,354 | 4,579 | Bisui | 8 | 2 | 97788 | Halmahera | |
| 82.04.03 | Gane Timur | East Gane | 656.72 | 8,729 | 9,253 | 9,539 | Maffa | 12 | 1 | 97783 | Halmahera |
Notes: (a) formally called Kepulauan Batanglomang; situated between Bacan and Mandioli Islands. (b) except for Bobo desa, which has a postcode of 97792.
(c) includes Lata Lata Island (27.9 km2, with 1,201 inhabitants in 2020), located to the northwest of Kasiruta Island, and comprising two desa - Lata Lata and Sidanga.
(d) Kayoa Barat (essentially Pulau Muari, but also includes the four small offshore islets of Pulau Guaigo, Pulau Guaigo Kecil, Pulau Intan and Pulau Tamotamo) actually lies closer to Kasiruta Island than to the rest of the Kayoa group; it is geographically adjacent to Lata Lata Island, part of Kasiruta Barat District.
(e) comprising the villages (desa) of Gonone, Kukupang, Kurunga, Liboba Hijrah, Pulau Gala, Tawabi and Yomen; the largest island is Pulau Damar or Kukupang.
(f) includes the Widi Islands off the east coast of the Gane Peninsula.
The various South Halmahera languages are a branch of Austronesian languages.
South Halmahera has been designated by provincial governor Abdul Ghani Kasuba as a region for tourism development.[10] The Widi International Fishing Tournament was founded for this purpose.[11] Kasuba also successfully negotiated for the China-based Jinchun Group to build a nine-trillion rupiah nickel smelter in the Obi Islands.[12]