| En Name: | Sedelnikovsky District |
| Ru Name: | Седельниковский район |
| Coordinates: | 56.95°N 95°W |
| Image Coa: | Седельниковский район.png |
| Federal Subject: | Omsk Oblast |
| Adm Data As Of: | December 2009 |
| Adm Ctr Type: | selo |
| Adm Ctr Name: | Sedelnikovo |
| Selsoviet Type1: | rural okrug |
| No Of Selsoviets Type1: | 11 |
| No Of Rural Localities: | 34 |
| Mun Data As Of: | July 2011 |
| Mun Formation1: | Sedelnikovsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 0 |
| Mun Formation1 No Of Rural Settlements: | 11 |
| Area Km2: | 5200 |
| Pop 2010Census: | 10943 |
| Urban Pop 2010Census: | 0% |
| Rural Pop 2010Census: | 100% |
| Established Date: | 1924 |
| Website: | http://www.sedel.omskportal.ru/ |
| Date: | September 2012 |
Sedelnikovsky District (Russian: Седе́льниковский райо́н) is an administrative[1] and municipal[2] district (raion), one of the thirty-two in Omsk Oblast, Russia. It is located in the east of the oblast. The area of the district is 5200km2. Its administrative center is the rural locality (a selo) of Sedelnikovo. Population: 10,943 (2010 Census); The population of Sedelnikovo accounts for 48.6% of the district's total population.
The district is situated in the taiga, although logging has denuded much of the forest. The biggest rivers flowing through the district are the tributaries of the Irtysh, including the Uy, the Shaytanka, the Shish, and the Maly Shish.
Prior to 1582, the area of what is now Sedelnikovsky District was a part of the Khanate of Sibir. That year Cossack ataman Yermak Timofeyevich defeated Kuchum Khan at the Battle of Chuvash Cape. Although Yermak was eventually killed after sacking Qashliq to the east, the Russian Empire retained control of the region. The area was secured in 1594 when Prince Andrey Yeletsky established a permanent garrison at Tara to the southwest.
The first settlement in the area was the village of Sedelnikovo, founded in 1785 by Sedelnikov brothers, who moved here from the village of Ostrovnaya.[3]
The modern district was established in 1924.
Administratively, the district is divided into eleven rural okrugs (Bakinsky, Golubovsky, Keyzessky, Kukarsky, Novouysky, Ragozinsky, Saratovsky, Sedelnikovsky, Unarsky, Yevlansky, and Yelnichny) comprising thirty-four rural localities. Municipally, the district is incorporated as Sedelnikovsky Municipal District and divided into eleven rural settlements (which correspond to the administrative rural okrugs).