2022 Rakuten Japan Open Tennis Championships

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.

Singles

 * 🇺🇸 Taylor Fritz def. 🇺🇸 Frances Tiafoe, 7–6(7–3), 7–6(7–2)

Doubles

 * 🇺🇸 Mackenzie McDonald / 🇧🇷 Marcelo Melo def. 🇧🇷 Rafael Matos / 🇪🇸 David Vega Hernández, 6–4, 3–6, [10–4]

Seeds

 * 1 Rankings are as of September 26, 2022.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Kaichi Uchida
 * 🇯🇵 Yasutaka Uchiyama
 * 🇯🇵 Yosuke Watanuki

The following players received entry from the qualifying draw:
 * 🇯🇵 Rio Noguchi
 * 🇮🇳 Ramkumar Ramanathan
 * 🇯🇵 Sho Shimabukuro
 * 🇯🇵 Yuta Shimizu

The following player received entry as a lucky loser:
 * 🇯🇵 Hiroki Moriya

Withdrawals

 * 🇺🇸 Jenson Brooksby → replaced by Tseng Chun-hsin
 * 🇺🇸 Marcos Giron → replaced by 🇵🇱 Kamil Majchrzak
 * 🇬🇧 Cameron Norrie→ replaced by 🇯🇵 Hiroki Moriya
 * João Sousa → replaced by 🇺🇸 Steve Johnson
 * 🇩🇪 Alexander Zverev → replaced by 🇦🇺 Alexei Popyrin

Seeds

 * Rankings are as of September 26, 2022.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇯🇵 Toshihide Matsui / 🇯🇵 Kaito Uesugi
 * 🇯🇵 Yoshihito Nishioka / 🇯🇵 Kaichi Uchida

The following pair received entry from the qualifying draw:
 * 🇧🇪 Sander Gillé / 🇧🇪 Joran Vliegen

Withdrawals

 * 🇯🇵 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