2023 Chengdu Open

The 2023 Chengdu Open was a men's tennis tournament played on outdoor hard courts. It was the 5th edition of the Chengdu Open (the first since 2019 after intervening editions were cancelled due to the COVID-19 pandemic in mainland China) and part of the ATP Tour 250 series of the 2023 ATP Tour. It took place at the Sichuan International Tennis Center in Chengdu, China, from 20 to 26 September 2023.

Singles

 * 🇩🇪 Alexander Zverev def. Roman Safiullin, 6–7(2–7), 7–6(7–5), 6–3

Doubles

 * 🇫🇷 Sadio Doumbia / 🇫🇷 Fabien Reboul def. Francisco Cabral / 🇧🇷 Rafael Matos, 4–6, 7–5, [10–7]

Seeds

 * 1 Rankings are as of 18 September 2023

Other entrants
The following players received wildcards into the singles main draw:
 * 🇧🇪 Zizou Bergs
 * 🇨🇳 Cui Jie
 * 🇨🇳 Mu Tao

The following players received entry from the qualifying draw:
 * Alibek Kachmazov
 * Pavel Kotov
 * Benjamin Lock
 * 🇦🇺 Philip Sekulic

The following player received entry as a lucky loser:
 * 🇦🇺 Li Tu

Withdrawals

 * 🇪🇸 Roberto Bautista Agut → replaced by 🇯🇵 Taro Daniel
 * 🇫🇮 Emil Ruusuvuori → replaced by 🇦🇺 Li Tu

Seeds

 * 1 Rankings are as of 18 September 2023

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇨🇳 Cui Jie / 🇨🇳 Wang Aoran
 * 🇨🇳 Li Wenfu / 🇨🇳 Yang Mingyuan

Withdrawals

 * Ariel Behar / 🇨🇿 Adam Pavlásek → replaced by Ariel Behar / 🇫🇮 Patrik Niklas-Salminen
 * 🇪🇨 Gonzalo Escobar / 🇰🇿 Aleksandr Nedovyesov → replaced by 🇺🇸 Marcos Giron / 🇳🇿 Rubin Statham
 * Lloyd Harris / 🇦🇺 John Peers → replaced by 🇦🇺 John Peers / Roman Safiullin