Two-time defending champion

Novak Djokovic Novak Djokovic ( sr-Cyrl-Latn, Новак Ђоковић, Novak Đoković, separator=" / ", ; born 22 May 1987) is a Serbian professional tennis player. He has been ranked as the List of ATP number 1 ranked singles tennis players#Weeks at N ...

defeated

Daniil Medvedev Daniil Sergeyevich Medvedev ( rus, Даниил Сергеевич Медведев, p=dənʲɪˈil sʲɪrˈɡʲe(j)ɪvʲɪtɕ mʲɪdˈvʲedʲɪf; born 11 February 1996) is a Russian professional tennis player. He has been ranked as the List of ...

in the final, 7–5, 6–2, 6–2 to win the men's singles tennis title at the

2021 Australian Open The 2021 Australian Open was a Grand Slam tennis tournament that took place at Melbourne Park, on 8–21 February 2021. It was the 109th edition of the Australian Open, the 53rd in the Open Era, and the first Major tournament of the year. It w ...

. It was his record-extending ninth

Australian Open The Australian Open (stylized ΛO) is a tennis tournament organised by Tennis Australia annually at Melbourne Park in Melbourne, Victoria (state), Victoria, Australia. It is chronologically the first of the four Grand Slam (tennis), Grand Sl ...

title and 18th

major Major most commonly refers to: * Major (rank), a military rank * Academic major, an academic discipline to which an undergraduate student formally commits * People named Major, including given names, surnames, nicknames * Major and minor in musi ...

title overall. With his fourth-round win, Djokovic joined

Roger Federer Roger Federer ( , ; born 8 August 1981) is a Swiss former professional tennis player. He was ranked as the List of ATP number 1 ranked singles tennis players, world No. 1 in men's singles by the Association of Tennis Professionals (ATP) for 3 ...

as only the second man to achieve 300 match wins in majors.

Aslan Karatsev Aslan Kazbekovich Karatsev (, ; born 4 September 1993) is a Russian professional tennis player. He reached a career-high singles ranking of world No. 14 on 7 February 2022, and peaked at No. 76 in the doubles rankings on 16 May 2022. Karatsev h ...

was the first male qualifier to reach a major semifinal since

Vladimir Voltchkov Vladimir Nikolayevich Voltchkov (, ''Uładzimir Mikałajevič Vałčkoŭ''; ; born April 7, 1978) is a Belarusian former professional tennis player. Voltchkov reached the semifinals at the 2000 Wimbledon Championships, where, as a qualifier, he ...

in the 2000 Wimbledon Championships, and the first at the Australian Open since

Bob Giltinan Robert Gary Giltinan Order of Australia Medal, OAM (born 4 July 1949) is an Australian former professional tennis player who was a grass court specialist. He won one singles title and two doubles titles over a twelve-year career spanning the int ...

in December 1977. Ranked world No. 114, he was the lowest-ranked player to reach a major semifinal since

Goran Ivanišević Goran Ivanišević (; born 13 September 1971) is a Croatian former professional tennis player and current coach. He was ranked world No. 2 in men's singles by the Association of Tennis Professionals (ATP) in July 1994. Ivanišević won 22 ATP To ...

(ranked No. 125) at the 2001 Wimbledon Championships, the lowest ranked to do so at the Australian Open since

Patrick McEnroe Patrick William McEnroe (born July 1, 1966) is an American former professional tennis player, broadcaster, and former captain of the United States Davis Cup team. Born in Manhasset, New York, he is John McEnroe's youngest brother. He won one ...

(also ranked No. 114) in

1991 It was the final year of the Cold War, which had begun in 1947. During the year, the Soviet Union Dissolution of the Soviet Union, collapsed, leaving Post-soviet states, fifteen sovereign republics and the Commonwealth of Independent State ...

, and the first man in the

Open Era The racket sport traditionally named lawn tennis, invented in Edgbaston, Warwickshire, England, now commonly known simply as tennis, is the direct descendant of what is now denoted real tennis or royal tennis, which continues to be played today a ...

to reach the semifinals on his major main-draw debut. This was the first major in the Open Era to feature three Russian men in the quarterfinals, those being Medvedev, Karatsev, and

Andrey Rublev Andrey Andreyevich Rublev (; born 20 October 1997) is a Russian professional tennis player. He has been ranked as high as world No. 5 in men's singles by the Association of Tennis Professionals (ATP), which he first achieved in September 2021 ...

. This marked the first major main-draw appearance of future world No. 1 and four-time major champion

Carlos Alcaraz Carlos Alcaraz Garfia (; born 5 May 2003) is a Spanish professional tennis player. He has been ranked as the List of ATP number 1 ranked singles tennis players, world No. 1 in men's singles by the Association of Tennis Professionals (ATP), inc ...

; he lost to

Mikael Ymer Mikael Ymer (born 9 September 1998) is a Swedish professional tennis player. He had a career high Association of Tennis Professionals, ATP singles ranking of world No. 50, achieved on 17 April 2023. In the ATP doubles ranking his career high is N ...

in the second round. At 17 years old, Alcaraz was the youngest man to win a main-draw match at the Australian Open since

Bernard Tomic Bernard Tomic (; , ; born 21 October 1992) is an Australian professional tennis player. He has been ranked as high as world No. 17 in men's singles by the Association of Tennis Professionals (ATP). Tomic has won four singles titles on the ATP To ...

2009 2009 was designated as the International Year of Astronomy by the United Nations to coincide with the 400th anniversary of Galileo Galilei's first known astronomical studies with a telescope and the publication of Astronomia Nova by Joha ...

Seeds

All seedings per ATP rankings.

Draw

Finals

Top half

Section 1

Section 2

Section 3

Section 4

Bottom half

Section 5

Section 6

Section 7

Section 8

Ranking

The following are the seeded players. Seedings are based on ATP rankings as of 1 February 2021. Rankings and points before are as of 8 February 2021.

Other entry information

Wild cards

Protected ranking

Qualifiers

Lucky losers

Potential lucky losers

Borna Gojo Borna Gojo (; born 27 February 1998) is a Croatian professional tennis player. He has a career-high Association of Tennis Professionals, ATP singles ranking of world No. 72, achieved on 20 November 2023, and a doubles ranking of world No. 394 ach ...

(''did not play'')

Withdrawals

Explanatory notes

References

External links

Association of Tennis Professionals (ATP) – 2021 Australian Open Men's Singles draw

2021 Australian Open – Men's draws and results
at the

International Tennis Federation The International Tennis Federation (ITF) is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national tennis associations. there are 211 nat ...

{{DEFAULTSORT:2021 Australian Open - Men's Singles Men's Singles Australian Open (tennis) by year – Men's singles