Sania Mirza (born November 15, 1986, Mumbai, India resides in Hyderabad, India) is a professional tennis player from India.

Coached by her father, Imran Mirza, Sania began playing tennis at age six. She turned professional in 2003. She became the first and only Indian woman to reach the 4th round of a Grand Slam tournament at the 2005 US Open. She is the highest ranked female tennis player ever from India (She achieved a rank of 34, her highest ever, by mid-September 2005). Her original goal was to enter the top 100 by the end of 2005, but she revised it to entering the top 50 after good performances at the beginning of the year. (She may have also been helped by the fact that she has very few points to defend for this year and thus, it has been an upward journey in rankings.) As of September 2005, she ranked 3rd among Asian women. Her year-end rank in 2004 was 206.

"My mother took me to a coach, who initially refused to coach me because I was too small," said Mirza. "After a month, he called my parents to say he'd never seen a player that good at such a young age." From WTATour interview She is 5 ft. 7 in. tall.

She has earned a large fan following in India as she is one of the very few young women from the country to have done well at the highest levels of sport. The media termed the phenomenon as Sania Mania. She reportedly earns an endorsement amount of Rs. 1.5 crore (~ U.S. $ 0.35 million) per brand per annum. In 2005, she was awarded the Arjuna award in tennis for the year 2004. She has defeated two top 10 players, Svetlana Kuznetsova and Nadia Petrova. She is a Muslim, who began playing tennis at the age of six.

Sania won the Wimbledon Championships Girls' Doubles title in 2003, teaming up with Alisa Kleybanova of Russia. She got a wild card entry to the 2005 Australian Open and created history by becoming the first Indian woman to enter the third round of a Grand Slam tournament. She lost in the 3rd round to eventual champion Serena Williams. On February 12, 2005, she became the first Indian woman to win a WTA singles title defeating Alyona Bondarenko of Ukraine in the Hyderabad Open Finals.

Watching her performance in Acura Classics, legendary Pancho Segura, Ecuador-born American player who roamed the courts in the 1940s and 50s, felt that Sania's hard-hitting game resembles that of Romanian tennis legend Nastase. Segura said that Sania has a natural way of hitting the ball and she hits it hard. These qualities remind him of Ilie Nastase.