The 2019 Chengdu Open was a men's tennis tournament played on outdoor hard courts. It was the 4th edition of the Chengdu Open and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place at the Sichuan International Tennis Center in Chengdu, China, from September 23 to 29.
Singles main-draw entrants
Seeds
1 Rankings are as of September 16, 2019
Other entrants
The following players received wildcards into the singles main draw: Bai Yan Chung Hyeon Li Zhe
The following player received entry using a protected ranking into the singles main draw: Vasek Pospisil
The following player received entry as a special exempt: Egor Gerasimov
The following players received entry from the qualifying draw: Jason Jung Bradley Klahn Kamil Majchrzak Alexei Popyrin
The following player received entry as a lucky loser: Lloyd Harris
Withdrawals
Richard Gasquet → replaced by Vasek Pospisil
Mikhail Kukushkin → replaced by Ričardas Berankis
Kamil Majchrzak → replaced by Lloyd Harris
Reilly Opelka → replaced by Alexander Bublik
Sam Querrey → replaced by Márton Fucsovics
Doubles main-draw entrants
Seeds
Rankings are as of September 16, 2019
Other entrants
The following pairs received wildcards into the doubles main draw: Li Zhe / Gao Xin Sun Fajing / Wang Aoran
Champions
Singles
Pablo Carreño Busta def. Alexander Bublik, 6–7(5–7), 6–4, 7–6(7–3)
Doubles
Nikola Ćaćić / Dušan Lajović def. Jonathan Erlich / Fabrice Martin, 7–6(11–9), 3–6, [10–3]