Oktyabrsky District () is an administrative and municipal district (raion), one of the nine in Khanty-Mansi Autonomous Okrug of Tyumen Oblast, Russia. It is located in the western central part of the autonomous okrug. The area of the district is . Its administrative center is the urban locality (an urban-type settlement) of Oktyabrskoye. As of the 2010 Census, the total population of the district was 32,224, with the population of Oktyabrskoye accounting for 11.3% of that number.
The district was established as Mikoyanovsky District () in 1937 within OstyakâÂÂVogul National Okrug of Omsk Oblast from parts of Beryozovsky and Kondinsky Districts. It was given its present name on November 28, 1957.