The Om (Russian: Омь) is a river in the south of the Western Siberian plains in Russia. It is a right tributary of the Irtysh. It is 1,091 kilometres (678 mi) long, and has a drainage basin of 52,600 square kilometres (20,300 sq mi).[1] It rises in the Vasyugan Swamp at the border of Novosibirsk and Tomsk oblasts.[2] The name is probably from the word om "quiet" in the language of the Baraba Tatars.[3] The city of Omsk is situated at the confluence of Om and Irtysh. The main tributaries are the Icha, Kama and Tartas.[2]

The Om in Kuybyshev
Physical characteristics
 • coordinates
54°58′54″N 73°22′10″E / 54.9817°N 73.3694°E / 54.9817; 73.3694Coordinates: 54°58′54″N 73°22′10″E / 54.9817°N 73.3694°E / 54.9817; 73.3694
Length1,091 km (678 mi)
Basin size52,600 km2 (20,300 sq mi)
Basin features
ProgressionIrtyshObKara Sea


  1. ^ "Река ОМЬ in the State Water Register of Russia". (in Russian).
  2. ^ a b Омь, Great Soviet Encyclopedia
  3. ^ E.M. Pospelov, Geograficheskie nazvaniya mira (Moscow, 1998), p. 310.