Grand Slam (tennis) champions in girls' singles

Gabriela Beatriz Sabatini (born 16 May 1970) is an Argentine-Italian former professional tennis player. A former world No. 3 in both singles and doubles, Sabatini was one of the leading players from the mid-1980s to the mid-1990s, amassing 41 titles. In singles, Sabatini won the 1990 US Open, the Tour Finals in 1988 and 1994, and was runner-up at Wimbledon 1991, the 1988 US Open, and the silver medalist at the 1988 Olympics. In doubles, Sabatini won Wimbledon in 1988 partnering Steffi Graf, and reached three French Open finals. Among Open era players who did not reach the world No. 1 ranking, Sabatini has the most wins over reigning world No. 1 ranked players. In 2006, she was inducted into the International Tennis Hall of Fame and in 2018 Tennis Magazine ranked her as the 20th-greatest female player of the preceding 50 years.

Martina Hingis (born Martina Hingisová; 30 September 1980) is a Swiss former professional tennis player. She spent a total of 209 weeks as the singles world No. 1 and 90 weeks as doubles world No. 1, holding both No. 1 rankings simultaneously for 29 weeks. She won 5 Grand Slam singles titles, 13 Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and 7 Grand Slam mixed doubles titles; for a combined total of 25 major titles. In addition, she won the season-ending WTA Finals two times in singles and three times in doubles, an Olympic silver medal, and a record 17 Tier I singles titles.

Caroline Wozniacki (R) (born 11 July 1990) is a Danish former professional tennis player. A former world No. 1 in singles, she achieved the top ranking for the first time on 11 October 2010, becoming the 20th player in the Open Era, and the first woman from a Scandinavian country to hold the top ranking position. She was the year-end No. 1 in both 2010 and 2011, held the top ranking for a combined total of 71 weeks, and won more than $35 million in prize money.

Jelena Dokic (Serbian: Jelena Dokić / Јелена Докић; born 12 April 1983, in Osijek, Croatia) is an Australian tennis coach, commentator, writer, and former professional tennis player. Her highest ranking as a tennis player was world No. 4 in August 2002. She won WTA Tour events on all surfaces during her career.

Eugenie "Genie" Bouchard (French: Eugénie Bouchard, born February 25, 1994) is a Canadian born tennis player who resides in Miami. At the 2014 Wimbledon Championships, she became the first Canadian-born player representing Canada to reach the final of a Grand Slam tournament in singles, finishing runner-up to Petra Kvitová. Bouchard also reached the semifinals of the 2014 Australian Open and 2014 French Open. Having won the 2012 Wimbledon girls' title, she was named WTA Newcomer of the Year at the end of the 2013 WTA Tour. Finally, Bouchard received the WTA Most Improved Player award for the 2014 season and reached a career-high ranking of No. 5, becoming the first Canadian tennis player to be ranked in the top 5 in singles.

Colleen "CoCo" Vandeweghe ( VAN-də-way) (born Colleen Mullarkey; December 6, 1991) is an American professional tennis player. A former Junior US Open champion and top 10 singles player, she has also won two WTA titles, both at the Rosmalen Grass Court Championships in Den Bosch. In 2017, she reached two Grand Slam semifinals and the final of the WTA Elite Trophy to move into the top 10 for the first time. She reached her career-high singles ranking of world No. 9 on January 15, 2018. In addition to her two Grand Slam semifinals in 2017 at the Australian Open and the US Open, Vandeweghe has twice reached the quarterfinals at Wimbledon in both 2015 and 2017. Vandeweghe also owns one Grand Slam doubles title, which she won at the 2018 US Open with partner Ashleigh Barty.

Victoria Fiodaraŭna Azarenka (Belarusian: Вікторыя Фёдараўна Азаранка; Russian: Виктория Фёдоровна Азаренко; born 31 July 1989) is a Belarusian professional tennis player. Azarenka is a former world No. 1 in singles, having claimed the top ranking for the first time on 30 January 2012. She was the year-end No. 1 in 2012 and has held the top ranking for a combined total of 51 weeks.

Amélie Simone Mauresmo (born 5 July 1979) is a French former world No. 1 tennis player and tournament director. Mauresmo won two major singles titles at the 2006 Australian Open and Wimbledon Championships, and also won the silver medal in singles at the 2004 Summer Olympics and the singles title at the 2005 year-end championships.

Susan Barker, OBE (born 19 April 1956) is an English television presenter and former professional tennis player. During her tennis career, she won fifteen WTA Tour singles titles, including one Grand Slam singles title at the 1976 French Open. She reached a career-high singles ranking of World No. 3. She is now one of the main sports presenters at the BBC, most notably fronting the corporation’s coverage of Wimbledon and A Question of Sport.

Maria Yuryevna Kirilenko-Stepanova (Russian: Мари́я Ю́рьевна Кириле́нко, born 25 January 1987) is a Russian former professional tennis player. A junior Grand Slam champion at the 2002 US Open at the age of 15, she went on to become a top ten player in both singles and doubles. Kirilenko won six WTA singles titles and 12 doubles titles. She was a three Grand Slam singles quarterfinalist (reaching that stage at the 2010 Australian Open, the 2012 Wimbledon Championships, and the 2013 French Open), a semifinalist at the 2012 London Olmypics (where she lost to Victoria Azarenka in the bronze medal match), and reached a career-high ranking of world No. 10 on 10 June 2013. In women's doubles, she became ranked as high as No. 5 in the world on 24 October 2011, and reached two Grand Slam finals, at the 2011 Australian Open with Azarenka and the 2012 French Open with compatriot Nadia Petrova. Along with Petrova, Kirilenko won the 2012 WTA Tour Championships in doubles and was a bronze medalist at the 2012 London Olympics.