| Official Name: | East Ogan Komering Ulu Regency |
| Native Name: | (Kabupaten Ogan Komering Ulu Timur) |
| Native Name Lang: | id |
| Type: | Regency |
| Motto: | Sebiduk Sehaluan (A boat with one destination) |
| Subdivision Type: | Country |
| Subdivision Name: | Indonesia |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Sumatra |
| Seat Type: | Regency seat |
| Seat: | Martapura |
| Area Total Km2: | 3370 |
| Population As Of: | mid 2023 estimate |
| Population Total: | 684560 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Timezone1: | WIB |
| Utc Offset1: | +7 |
East Ogan Komering Ulu Regency (Kabupaten Ogan Komering Ulu Timur) is a regency of South Sumatra Province, Indonesia. It was created on 18 December 2003 from what had formerly been the eastern districts of Ogan Komering Ulu Regency. It covers an area of 3,370 km2 and had a population of 609,982 at the 2010 Census[2] and 649,853 at the 2020 Census;[3] the official estimate as at mid 2023 was 684,560 (comprising 350,191 males and 334,369 females).[4] The regency seat is the town of Martapura.[5] It borders Ogan Ilir Regency to the north, Ogan Komering Ulu Regency to the west, Ogan Komering Ilir Regency in the east and Lampung Province and South Ogan Komering Ulu Regency in the south.[5]
This Regency is administratively composed of twenty districts (kecamatan), comprising 191 villages.[5] Their areas (in km2) and their populations at the 2010[6] and 2020[7] Censuses are listed below, together with the official estimates as at mid 2023.[8] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 305 rural desa and 7 urban kelurahan - the latter all in Martapura District), 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 |
|---|---|---|---|---|---|---|---|---|
| 16.08.01 | 102.16 | 48,141 | 54,806 | 59,280 | Martapura | 16 (a) | 32311 - 32319 | |
| 16.08.11 | Bunga Mayang | 113.54 | 15,841 | 17,460 | 18,568 | Negeri Ratu | 8 | 32387 |
| 16.08.16 | Jayapura | 230.17 | 11,635 | 14,957 | 16,422 | Bunga Mayang | 8 | 32381 |
| 16.08.05 | Buay Pemuka Peliung | 154.13 | 31,514 | 33,733 | 35,991 | Pulau Negara | 13 | 32367 |
| 16.08.02 | Buay Madang | 114.36 | 35,689 | 37,036 | 38,677 | Kurungan Nyawa | 17 | 32361 |
| 16.08.12 | Buay Madang Timur (East Buay Madang) | 156.25 | 53,450 | 56,277 | 58,562 | Karang Tengah | 30 | 32360 |
| 16.08.20 | Buay Pemuka Bangsa Raja | 192.95 | 11,055 | 11,914 | 12,612 | Muncak Kabau | 7 | 32364 |
| 16.08.06 | Madang Suku II | 129.34 | 28,522 | 30,372 | 32,133 | Kota Negara | 19 | 32366 |
| 16.08.13 | Madang Suku III | 195.32 | 23,670 | 25,295 | 25,540 | Batumarta VI | 10 | 32365 |
| 16.08.07 | Madang Suku I | 211.25 | 34,019 | 35,493 | 37,891 | Rasuan | 13 | 32362 |
| 16.08.18 | Belitang Madang Raya | 163.59 | 40,837 | 44,704 | 46,867 | Tugu Mulyo | 16 | 32363 |
| 16.08.03 | Belitang | 354.50 | 50,509 | 51,300 | 53,569 | Gumawang | 23 | 32382 |
| 16.08.17 | Belitang Jaya | 91.97 | 18,204 | 20,296 | 21,394 | Karsa Jaya | 13 | 32380 |
| 16.08.10 | Belitang III | 153.87 | 32,951 | 35,413 | 36,716 | Nusa Bakti | 20 | 32385 |
| 16.08.09 | Belitang II | 153.59 | 39,746 | 41,961 | 43,766 | Sumber Jaya | 24 | 32383 |
| 16.08.19 | Belitang Mulya | 45.97 | 19,853 | 20,735 | 21,697 | Petanggan | 12 | 32388 |
| 16.08.08 | Semendawai Suku III | 297.77 | 36,842 | 39,221 | 41,155 | Sriwangi | 19 | 32386 |
| 16.08.15 | Semendawai Timur (East Semendawai) | 183.27 | 32,693 | 33,298 | 35,322 | Burnai Mulya | 19 | 32385 |
| 16.08.04 | Cempaka | 101.00 | 25,263 | 25,629 | 26,629 | Cempaka | 13 | 32384 |
| 16.08.14 | Semendawai Barat (West Semendawai) | 225.00 | 19,548 | 19,953 | 21,769 | Betung | 12 | 32384 |
| Totals | 3,370.00 | 609,982 | 649,853 | 684,560 | Martapura | 312 |
The regency is one of the major rice producing areas of South Sumatra, mainly concentrated in the Belitang District, Buay Madang District, Cempaka District and Martapura Districts with a large-scale irrigation scheme covering some 120,000 hectares.[9] Other crops include rubber, coffee, black pepper, coconut, palm oil and fruits such as orange, durian, duku, rambutan and banana.
Former Constitutional Court judge Ahmad Natabaya was born in the regency in the village of Cempaka.[10]