Marat Safin, born in Moscow on January 27, 1980, is a tennis coach, former tennis player and former Russian politician.

He started his professional career in 1997 and was number 1 in the world for 9 weeks between the end of 2000 and the beginning of 2001. He won two Grand Slam tournaments: the US Open in 2000 and the Australian Open in 2005. Marat Safin and his sister Dinara Safina represent the only pair of brothers number 1 in the world in the history of tennis in their respective categories, ATP and WTA.

At 20 years and 10 months he was the youngest number one in the world rankings, a record later broken by Lleyton Hewitt and later by Carlos Alcaraz, with the three still being the only players to have achieved the leadership of the ATP rankings before turning twenty-one years.

He has a sister, Dinara, also a successful tennis player and number 1 in the world. At 14 Marat moved to Valencia, Spain, to complete his tennis training. Safin is in fact a fan of Valencia Club de Fútbol.

Safin as a Tatar is a Muslim and says: "I am Russian, but I am a hundred percent Muslim. All Muslims are passionate, stubborn. We have a sanguine temperament."