Odnoklassniki
- Country: Russia
- Type: Social
- Website: odnoklassniki.ru
- Update: 05-01
Odnoklassniki is a popular social networking site in Russia and some of the former Soviet Union countries, derived from the Russian word "Одноклассники", which means "classmate" in Chinese, and is the seventh most popular website in Russia. The site is no longer limited to Russia, the CIS and the Baltic States, but is now popular worldwide.