Telman Mardanovich Ismailov (born 26 October 1956) is an Azerbaijani-born businessman and entrepreneur of Mountain Jew origin. Since Azerbaijan does not allow dual citizenship, he holds Russian-Turkish citizenship. He is the chairman of the Russian AST Group of companies, which is active in many countries. Until 2009, Ismailov owned the Europe's then-largest marketplace, Cherkizovsky Market, located in Moscow, Russia.

Known for his extravagant life style, Ismailov is famous for spending millions of dollars on singers like Jennifer Lopez, Mariah Carey, Tom Jones, and others. Ismailov paid Lopez $1.4 million for her to sing 10 minutes worth of songs. The video of her singing "Happy Birthday" song to him is available on YouTube. Ismailov befriended plenty of other celebrities such as actresses like Sharon Stone, Richard Gere, Monica Bellucci, Paris Hilton, and numerous other performers just to appear at his lavish parties.