Naomi Osaka is a Japanese professional tennis player. She has been ranked world No. 1 in singles by the Women's Tennis Association (WTA) and is the first Asian player to hold the top ranking in singles. Osaka is a four-time Grand Slam singles champio ...

defeated

Jennifer Brady Jennifer Elizabeth Brady (born April 12, 1995) is an inactive American professional tennis player. She reached a career-high singles WTA ranking of world No. 13 on 22 February 2021, and a career-high doubles ranking of 44 on 19 August 2019. Brad ...

in the final, 6–4, 6–3 to win the women's singles tennis title at the 2021 Australian Open. It was her second

Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Open. Th ...

title and fourth

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title overall. With the win, Osaka extended her winning streak to 21 matches, dating to the 2020 Cincinnati Open. She only lost one set during the tournament, to

Garbiñe Muguruza Garbiñe Muguruza Blanco (; born 8 October 1993) is a Spanish-Venezuelan professional tennis player. She has a career-high singles ranking of world No. 1 by the Women's Tennis Association (WTA), and a career-high doubles ranking of world No. ...

in the fourth round; she also saved two match points in that match, making her the eighth woman to win the Australian Open after saving match points. Osaka became the third player in the

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, after

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and

Roger Federer Roger Federer (; born 8 August 1981) is a Swiss former professional tennis player. He was ranked List of ATP number 1 ranked singles tennis players#Weeks at No. 1, world No. 1 by the Association of Tennis Professionals (ATP) for 310 weeks, in ...

, to win their first four major finals.

Sofia Kenin Sofia Anna "Sonya" Kenin (born November 14, 1998) is an American professional tennis player. She has a career-high ranking by the Women's Tennis Association (WTA) of No. 4 in the world, which she achieved on March 9, 2020. She was the 2020 WTA ...

was the defending champion, but lost to

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in the second round.

Venus Williams Venus Ebony Starr Williams (born June 17, 1980) is an American professional tennis player. A former world No. 1 in both singles and doubles, Williams has won seven Grand Slam singles titles, five at Wimbledon and two at the US Open. She is ...

became the first player aged 40 or more to win her first-round match since

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at the

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Mayar Sherif Mayar Sherif Ahmed Abdel-Aziz ( ar, ميار شريف أحمد عبد العزيز; born 5 May 1996) is an Egyptian tennis player. She is the younger sister of Rana Sherif Ahmed. She has career-high WTA rankings of world No. 44 in singles, achiev ...

became the first Egyptian woman to win a major main draw match.

Hsieh Su-wei Hsieh Su-wei ( ;''Xiè 謝淑薇Shūwēi'' in Chinese mainland. Taiwanese Mandarin: ; in Standard Mandarin of Chinese mainland. born 4 January 1986) is an inactive Taiwanese professional tennis player. She has won three singles titles and 30 ...

became the first Taiwanese woman to make a major singles quarterfinal. At 35 years of age, Hsieh also became the oldest player to make her quarterfinal debut.

Serena Williams Serena Jameka Williams (born September 26, 1981) is an American inactive professional tennis player. Considered among the greatest tennis players of all time, she was ranked world No. 1 in singles by the Women's Tennis Association (WTA) for ...

equaled

Chris Evert Christine Marie Evert (born December 21, 1954), known as Chris Evert Lloyd from 1979 to 1987, is an American former world No. 1 tennis player. Evert won 18 major singles titles, including a record seven French Open titles and a joint-record ...

's all-time record of 54 major quarterfinals at this tournament; she then lost to Osaka in the semifinals. This was the seven-time champion's final appearance at the event. Williams announced her retirement from professional tennis the following year.

Seeds

Seeding per WTA rankings.

Draw

Finals

Top half

Section 1

Section 2

Section 3

Section 4

Bottom half

Section 5

Section 6

Section 7

Section 8

Other entry information

Wild cards

Protected ranking

Qualifiers

Lucky losers

Potential lucky losers

Withdrawals

– not included on entry list
& – withdrew from entry list

Championship match statistics

Explanatory notes

References

External links

Draw information
{{DEFAULTSORT:Australian Open - Women's Singles, 2021 Women's Singles

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2021 in Australian women's sport 2021 WTA Tour 2021 in women's tennis