Altai or Altay may refer to:
Places Altai Mountains, in Central and East Asia, a region shared by China, Mongolia, Kazakhstan and Russia
In China Altay Prefecture (), Xinjiang Uyghur Autonomous Region, China Altay City (), also spelled "Aletai", a city of Altay Prefecture
In Kazakhstan Altai District, a District in East Kazakhstan Region, Kazakhstan, until 2019 known as Zyryan or Zyryanovsk Altai Town, a town in ltai District, East Kazakhstan Region, Kazakhstan, until 2019 known as Zyryan or Zyryanovsk
In Mongolia Altai City, capital of the Govi-Altai province Altai, Govi-Altai, a sum (district) Altai, Bayan-Ölgii, a sum Altai, Khovd, a sum
In Russia Altai Krai, a federal subject of Russia Altay, Altay Krai, an administrative locality in Kalmansky District, Altai Krai, Russia Altai Republic, a federal subject of Russia
People and languages Altay (name), a list of people with the given name or surname Altai people, an ethnic group Altai languages, the languages spoken by these people
Other uses Altai, a historical novel by Wu Ming Rupes Altai, a feature of the geography of the Moon Altay sheep, a sheep breed Altay S.K., a football club from İzmir, Turkey Altay S.K. (women's football), women's football team from İzmir, Turkey Altay (tank), a Turkish main battle tank Altay-class oiler, a Soviet Navy ship class Altai gas pipeline, a proposed natural gas pipeline between Russia and China Altai (mobile telephone system), a Soviet pre-cellular radiotelephone service Aletai meteorite, a very large meteorite which consists of several fragments found in the Altay Prefecture
See also Altaysky (disambiguation) Alt-A, a type of U.S. mortgage Computer Associates International, Inc. v. Altai, Inc., a US legal case