| Doubles | |
|---|---|
| 2021 Great Ocean Road Open | |
| Champions |  Jamie Murray  Bruno Soares |
| Runners-up |  Juan Sebastián Cabal Robert Farah |
| Final score | 6–3, 7–6(9–7) |
The Great Ocean Road Open was a new addition to the ATP Tour in 2021.
Jamie Murray and Bruno Soares won the title, defeating Juan Sebastián Cabal and Robert Farah in the final, 6–3, 7–6(9–7).
Juan Sebastián Cabal / Robert Farah (final) Jamie Murray / Bruno Soares (champions)
Ivan Dodig / 
Filip Polášek (semifinals)
Pierre-Hugues Herbert / 
Henri Kontinen (second round)
Marcus Daniell / Michael Venus (quarterfinals)
Marcelo Arévalo / 
Matwé Middelkoop (quarterfinals) Luke Bambridge / Dominic Inglot (second round)
Alexander Bublik / Andrey Golubev (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Juan Sebastián Cabal Robert Farah | 6 | 6 | ||||||||||
 Matthew Ebden John-Patrick Smith | 4 | 4 | |||||||||||
| 1 | Juan Sebastián Cabal Robert Farah | 3 | 67 | ||||||||||
| 2 | Jamie Murray Bruno Soares | 6 | 79 | ||||||||||
| 3 | Ivan Dodig Filip Polášek | 2 | 60 | ||||||||||
| 2 | Jamie Murray Bruno Soares | 6 | 77 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | JS Cabal R Farah | w/o | |||||||||||||||||||||||||
| M Purcell J Thompson | 6 | 5 | M Purcell J Thompson | ||||||||||||||||||||||||
 N Basilashvili  A Begemann | 4 | 4r | 1 | JS Cabal R Farah | 6 | 6 | |||||||||||||||||||||
| WC | R Haase  S Querrey | 6 | 2 | 6 | M Arévalo M Middelkoop | 3 | 4 | ||||||||||||||||||||
| Alt | T Schoolkate D Sweeny | 4 | 1r | WC | R Haase S Querrey | 4 | 4 | ||||||||||||||||||||
| 6 | M Arévalo M Middelkoop | 6 | 6 | ||||||||||||||||||||||||
| 1 | JS Cabal R Farah | 6 | 6 | ||||||||||||||||||||||||
| M Ebden J-P Smith | 4 | 4 | |||||||||||||||||||||||||
| 4 | P-H Herbert H Kontinen | 1 | 4 | ||||||||||||||||||||||||
 H Hurkacz  J Sinner | 6 | 6 | H Hurkacz J Sinner | 6 | 6 | ||||||||||||||||||||||
| S Puodziunas C Puttergill | 3 | 3 | H Hurkacz J Sinner | ||||||||||||||||||||||||
| M Ebden J-P Smith | 77 | 6 | M Ebden J-P Smith | w/o | |||||||||||||||||||||||
| WC | C O'Connell A Vukic | 65 | 4 | M Ebden J-P Smith | 6 | 6 | |||||||||||||||||||||
| 7 | L Bambridge D Inglot | 4 | 4 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | M Daniell M Venus | 78 | 6 | ||||||||||||||||||||||||
 F Delbonis A Sitak | 66 | 6 | [10] | F Delbonis A Sitak | 66 | 2 | |||||||||||||||||||||
| D Koepfer T Sandgren | 78 | 3 | [8] | 5 | M Daniell M Venus | 2 | 3 | ||||||||||||||||||||
| Alt |  R Carballés Baena  P Cuevas | 3 | 6 | [10] | 3 | I Dodig F Polášek | 6 | 6 | |||||||||||||||||||
 J-s Nam M-k Song | 6 | 3 | [4] | Alt | R Carballés Baena P Cuevas | 7 | 4 | [7] | |||||||||||||||||||
| 3 | I Dodig F Polášek | 5 | 6 | [10] | |||||||||||||||||||||||
| 3 | I Dodig F Polášek | 2 | 60 | ||||||||||||||||||||||||
| 2 | J Murray B Soares | 6 | 77 | ||||||||||||||||||||||||
| 8 | A Bublik A Golubev | w/o | |||||||||||||||||||||||||
 M Kecmanović  K Khachanov | 2 | 6 | [10] | M Kecmanović K Khachanov | |||||||||||||||||||||||
 R Arneodo S Caruso | 6 | 4 | [3] | 8 | A Bublik A Golubev | 4 | 6 | [7] | |||||||||||||||||||
| L Đere S Travaglia | 5 | 3 | 2 | J Murray B Soares | 6 | 4 | [10] | ||||||||||||||||||||
| P Andújar P Martínez | 7 | 6 | P Andújar P Martínez | 64 | 3 | ||||||||||||||||||||||
| 2 | J Murray B Soares | 77 | 6 | ||||||||||||||||||||||||
Simone Bolelli and Fabio Fognini were the defending champions, but lost in the second round to Adrian Mannarino and Lucas Pouille.
Bob and Mike Bryan were the two-time defending champions, but lost in the second round to Juan Sebastián Cabal and Robert Farah.
Juan Sebastián Cabal and Robert Farah were the defending champions, but lost in the final to Pablo Carreño Busta and Pablo Cuevas, 4–6, 7–5, [8–10].
Henri Kontinen and John Peers were the defending champions, but lost in the second round to Radu Albot and Chung Hyeon.
Łukasz Kubot and Marcelo Melo were the defending champions, but lost in the first round to Steve Johnson and Sam Querrey.
Łukasz Kubot and Marcelo Melo were the defending champions, but lost to Juan Sebastián Cabal and Robert Farah in the quarterfinals.
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions but chose not to defend their title.
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions, but lost in the second round to Kevin Anderson and Novak Djokovic.
Pierre-Hugues Herbert and Nicolas Mahut were the defending champions, but Herbert chose not to participate this year. Mahut played alongside Édouard Roger-Vasselin, but they lost in the second round to Philipp Kohlschreiber and Fernando Verdasco.
Henri Kontinen and John Peers were the defending champions, but lost in the second round to Robert Lindstedt and Dominic Thiem.
Łukasz Kubot and Marcelo Melo were the defending champions, but lost in the quarterfinals to Marcel Granollers and Rajeev Ram.
Łukasz Kubot and Marcelo Melo were the defending champions, but Melo could not participate due to injury and Kubot chose to compete in Auckland instead.
Jamie Murray and Bruno Soares were the defending champions, but lost in the first round to Robert Lindstedt and Frances Tiafoe.
Bob and Mike Bryan were the defending champions, and successfully defended the title, defeating Wesley Koolhof and Stefanos Tsitsipas in the final, 7–5, 7–6(10–8).
Feliciano López and Marc López were the defending champions, but chose not to participate together. Feliciano López played alongside Pablo Carreño Busta, but lost in the semifinals to Juan Sebastián Cabal and Robert Farah. Marc López teamed up with Marcel Granollers, but lost in the first round to Raven Klaasen and Joe Salisbury.
Juan Sebastián Cabal and Robert Farah were the defending champions and successfully defended their title, defeating Raven Klaasen and Michael Venus in the final, 6–1, 6–3.
Mike Bryan and Jack Sock were the defending champions, but Sock could not participate due to injury. Mike Bryan played alongside his brother Bob, but lost in the third round to Nicolas Mahut and Édouard Roger-Vasselin.
Jamie Murray and Bruno Soares were the defending champions, but chose not to participate together. Murray played alongside his brother Andy but lost in the quarterfinals to Raven Klaasen and Michael Venus. Soares teamed up with Mate Pavić but lost in the first round to Jean-Julien Rojer and Horia Tecău.
Jamie Murray and Bruno Soares were the defending champions, but they chose not to participate together this year. Murray played alongside Neal Skupski, but lost in the semifinals to Ivan Dodig and Filip Polášek. Soares played alongside Mate Pavić, but lost in the semifinals to Juan Sebastián Cabal and Robert Farah.
Juan Sebastián Cabal and Robert Farah won their second consecutive Grand Slam men's doubles title, defeating Marcel Granollers and Horacio Zeballos in the final, 6–4, 7–5 to win the men's doubles tennis title at the 2019 US Open. Cabal and Farah retained the ATP no. 1 doubles ranking. Mike Bryan, Łukasz Kubot and Nicolas Mahut were also in contention for the top ranking at the start of the tournament.
| Grand Slam events | |
|---|---|
| ATP Tour Masters 1000 | |
| ATP Tour 500 | |
| ATP Tour 250 |
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| Team events | |
 – Tournaments are affected by the COVID-19 pandemic * – Tournaments are introduced due to the impact of the COVID-19 pandemic | |