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Odnoklassniki

Odnoklassniki, also known as OK.ru or OK, is a Russian social networking service launched in 2006.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated September 11, 2026|2 min read| Fact-checked

Odnoklassniki, also known as OK.ru or OK, is a Russian social networking service launched in 2006. It was created by Albert Popkov and is owned by VK. The platform is used for messaging, sharing media, finding contacts, and community participation, and it has a large user base in Russia and other Russian-speaking markets.

History

Odnoklassniki was created by Albert Popkov in 2006 and was originally designed to help users find former classmates and old friends. Over time, it developed into a broader social networking platform.

Features

The service supports messaging, audio and video calls, livestreaming, media sharing, music, videos, games, and groups or communities.

Ownership and branding

The platform is commonly referred to as OK or OK.ru and is currently owned by VK. It is one of the major Russian social networks.

Audience and reach

Odnoklassniki is described by sources as having millions of users and is especially associated with Russia and other Russian-speaking regions.

Key facts

  • The service was launched in March 2006 by Albert Popkov.
  • Odnoklassniki is a Russian social networking platform and online media service.
  • It is owned by VK.
  • The site originally focused on reconnecting with school classmates and old acquaintances.
  • The platform includes messaging, calls, video, music, games, and community features.

Frequently asked questions

What is Odnoklassniki?
Odnoklassniki is a Russian social networking service known as OK or OK.ru.
Who created Odnoklassniki?
It was created by Albert Popkov.
When was Odnoklassniki launched?
Sources state that it launched in March 2006.
Who owns Odnoklassniki?
Odnoklassniki is owned by VK.
What is ok.ru used for?
It is used for messaging, sharing photos and videos, livestreaming, calls, music, games, and communities.

References

  1. Wikipedia (Polish) — https://pl.wikipedia.org/wiki/OK_(serwis_spo%C5%82eczno%C5%9Bciowy)
    Supports: Describes Odnoklassniki/OK as a Russian social network, founded by Albert Popkov in March 2006, originally for finding old classmates.
  2. Wikipedia (English) — https://en.wikipedia.org/wiki/Odnoklassniki
    Supports: States the site's URL, owner VK, founder Albert Popkov, launch date, and general description as a social networking service.
  3. Google Play — https://play.google.com/store/apps/details?id=ru.ok.android&hl=en
    Supports: Describes the app as a social network with messaging, calls, livestreaming, stickers, gifts, music, videos, games, and support contact details.
  4. Apple App Store — https://apps.apple.com/us/app/odnoklassniki-social-network/id398465290
    Supports: Describes the app as a social network with messenger, chat, calls, and video features.
  5. Wikipedia (Russian) — https://ru.wikipedia.org/wiki/%D0%9E%D0%B4%D0%BD%D0%BE%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%BD%D0%B8%D0%BA%D0%B8_(%D1%81%D0%BE%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F_%D1%81%D0%B5%D1%82%D1%8C)
    Supports: States that the project launched on 26 March 2006 and is owned by VK.