Tobol Tatars

Tobol Tatars are a sub-group of Siberian Tatars.^[1] Tobol Tatars are settled along the rivers Irtysh, Tobol, Iset, Tura, Pyshma, Tavda, Noska, Layma in Tyumen and Omsk Oblasts. Their historical administrative center was the town of Isker.^[2]

Peoples of Siberia in the 16th century.

Tobol Tatars

Regions with significant populations
Russia	~ 100,000
Languages
Tobol-Irtysh dialect of Siberian Tatar, Russian
Religion
Sunni Islam

They are divided into four local sub-groups:

• Aremzyan-Nadtsin Tatars. They assimilated local Khanty and Mansi tribes. In the 17th century it included Tatar volosts, located along the Irtysh river north of Tobolsk up to the Turtas river. They are the most northern subgroup.
• Iskero-Tobolsk Tatars. The group is located south of Tobolsk. The group is Yurtovsk Tatars, who were in military service. They are central subgroup, geographically speaking.
• Babasan Tatars. They inhabit part of the Tobol basin from the lower reaches of the Tavda to the Mirimov yurts, inhabited by Siberian Bukharans. The term comes from the name of the Babasan volosts, which were recorded from the end of the 16th century until the October Revolution.
• Ishtyak-Tokuz Tatars. The group is named after two tribal groups of the Vagay river basin and Uvat swamps. They are the most eastern subgroup.

They are the most numerous group of Tobol-Irtysh Tatars and speak Tobol speach, with Eastern Tobol (Tokuz-Uvat) subdialect.^[3]