| Official Name: | Buton Regency |
| Native Name: | Kabupaten Buton |
| Native Name Lang: | id |
| Type: | Regency |
| Coordinates: | -5.1586°N 121.9308°W |
| Subdivision Type: | Country |
| Subdivision Name: | Indonesia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Southeast Sulawesi |
| Seat Type: | Capital |
| Seat: | Pasarwajo |
| Leader Title: | Regent |
| Leader Name: | La Bakry |
| Leader Title1: | Vice Regent |
| Leader Name1: | vacant |
| Area Total Km2: | 1647.87 |
| Population As Of: | mid 2023 estimate |
| Population Total: | 120873 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Timezone1: | ICST |
| Utc Offset1: | +8 |
| Area Code Type: | Area code |
| Area Code: | (+62) 402 |
| Pushpin Map: | Indonesia_Sulawesi#Indonesia |
| Pushpin Map Caption: | Location in Sulawesi and Indonesia |
| Pushpin Label Position: | right |
Buton Regency (Kabupaten Buton) is a regency of Indonesia's Southeast Sulawesi Province, lying entirely on Buton Island. Until 2014 it had an area of 2,681.22 km2, and a population estimated at 276,944 (for January 2014). However, in 2014 it was divided into three regencies, with two new regencies being cut out of it; the residual area now is 1,647.87 km2, and the districts in that area contained a population of 94,388 at the 2010 Census[2] while the 2020 Census produced a total of 115,207;[3] the official estimate as at mid 2023 was 120,873[4] The capital is nominally at Pasarwajo, but the regency's administration is actually undertaken in the city of Baubau on the south-west of the island, although that city is administratively separate from the Regency.
The original Buton Regency was formed in 1959 with a much wider area, including most of the island districts in the south of the province, but on 21 June 2001 the town of Bau-Bau was separated out to become an independent city, and on 18 December 2003 two new regencies were formed from parts of Buton Regency - Bombana Regency to the west and Wakatobi Regency to the east. At the time of the 2010 Census, the residual Buton Regency was divided into 21 districts (kecamatan), but in 2012 it was announced that the regency was to be further split, with the southern seven districts split off to form a new Buton Selatan Regency, and seven other districts split off to form a new Buton Tengah Regency (although the latter does not contain any part of Buton Island and is situated entirely on Muna Island and Kabaena Island). This division was made effective on 24 July 2014.
The remaining seven districts are tabulated below with their areas, their populations at the 2010 Census[5] and the 2020 Census,[6] together with the official estimates as at mid 2023.[7] The table also includes the locations of the district administrative centres, the number of villages in each district (totaling 83 rural desa and 12 urban kelurahan), and its post code.
| Kode Wilayah | Name of District (kecamatan) | Area in km2 | Pop'n Census 2010 | Pop'n Census 2020 | Pop'n Estimate mid 2023 | Admin centre | No. of villages | Post code | |
|---|---|---|---|---|---|---|---|---|---|
| 74.04.23 | Lasalimu (a) | 318.90 | 10,290 | 12,395 | 13,235 | Kamaru | 15 (b) | 93756 | |
| 74.04.24 | Lasalimu Selatan (South Lasalimu) | 147.01 | 12,815 | 15,204 | 15,939 | Ambuau Indah | 16 | 93757 | |
| 74.04.27 | Siontapina | 248.81 | 12,167 | 15,624 | 16,769 | Kumbewaha | 11 | 93758 | |
| 74.04.11 | Pasarwajo | 300.13 | 37,067 | 44,725 | 45,959 | Pasarwajo | 22 (c) | 93752 | |
| 74.04.28 | Wolowa | 94.55 | 4,946 | 6,188 | 6,793 | Wolowa | 7 | 93754 | |
| 74.04.29 | Wabula | 66.11 | 4,989 | 6,222 | 6,813 | Wabula | 7 | 93753 | |
| 74.04.22 | Kapontori (d) | 472.36 | 12,619 | 14,849 | 15,365 | Watumotobe | 17 (e) | 93755 | |
| Totals | 1,647.87 | 94,388 | 115,207 | 120,873 | Pasarwajo | 95 |
Notes: (a) includes 6 small offshore islands. (b) including 1 kelurahan (Kamaru).
(c) comprising 9 kelurahan (Awainulu, Kahulungaya, Kambula-Bulana, Kombeli, Pasarwajo, Saragi, Takimpo, Wagola and Wasaga) and 13 desa.
(d) includes 5 small offshore islands. (e) including 2 kelurahan (Wakangka and Watumotobe).
Buton regency has a tropical monsoon climate (Am) with moderate rainfall from July to October and heavy rainfall from November to June. The following climate data is for the town of Pasarwajo, the seat of the regency.