Nazyvayevsk (Russian: Называ́евск; Kazakh: Называй, Nazyvaı) is a town in Omsk Oblast, Russia, located 120 kilometers (75 mi) west of Omsk, the administrative center of the oblast.

[2] It was previously known as Sibirsky Posad (until 1917), Sibirskoye (until 1933), Nazyvayevka (until 1947), Novonazyvayevsk (until 1956).

[1] As an administrative division, it is incorporated separately as the town of oblast significance of Nazyvayevsk—an administrative unit with the status equal to that of the districts.

[1] As a municipal division, the town of oblast significance of Nazyvayevsk is incorporated within Nazyvayevsky Municipal District as Nazyvayevsk Urban Settlement.

[3] The town is a transfer point on the northern branch of the Trans-Siberian Railway between the Western Siberian and Sverdlovsk railways.