The 2022 Rakuten Japan Open Tennis Championships was a men's tennis tournament played on outdoor hard courts. It was the 47th edition of the Japan Open, and part of the ATP Tour 500 series of the 2022 ATP Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from 3–9 October 2022. It was the first event since 2019, with the 2020 and 2021 events cancelled due to the COVID-19 pandemic. Third-seeded Taylor Fritz won the singles title.[1]
See main article: 2022 Rakuten Japan Open Tennis Championships – Singles.
Taylor Fritz def. Frances Tiafoe, 7–6(7–3), 7–6(7–2)See main article: 2022 Rakuten Japan Open Tennis Championships – Doubles.
Mackenzie McDonald / 
Marcelo Melo def. Rafael Matos / 
David Vega Hernández, 6–4, 3–6, [10–4]| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Casper Ruud | 2 | 1 | ||
 United Kingdom | ||||
| Taylor Fritz | 12 | 3 | ||
| Frances Tiafoe | 19 | 4 | ||
| Nick Kyrgios | 20 | 5 | ||
| Alex de Minaur | 22 | 6 | ||
| Denis Shapovalov | 24 | 7 | ||
| Dan Evans | 25 | 8 | ||
| Borna Ćorić | 26 | 9 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Jenson Brooksby → replaced by Tseng Chun-hsin Marcos Giron → replaced by 
Kamil Majchrzak Cameron Norrie→ replaced by 
Hiroki Moriya Steve Johnson
Alexei Popyrin| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Australia | Thanasi Kokkinakis | Australia | Nick Kyrgios | 34 | 1 | |
| Australia | Matthew Ebden | Australia | Max Purcell | 69 | 2 | |
| Brazil | Rafael Matos | Spain | David Vega Hernández | 74 | 3 | |
| United Kingdom | Dan Evans | Australia | John Peers | 108 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry from the qualifying draw:
Taro Daniel / Marcos Giron → replaced by Brandon Nakashima / Hunter Reese
Miomir Kecmanović / João Sousa → replaced by 
Hans Hach Verdugo / Miomir Kecmanović Pedro Martínez / Cameron Norrie → replaced by Pedro Martínez / Bernabé Zapata Miralles
