2019 Chengdu Open

{{Infobox tennis event|2019|Chengdu Open|

| date=September 23–29

| edition=4th

| category=ATP Tour 250 series

| draw=28S / 16D

| surface=Hard / outdoor

| location=Chengdu, China

| champs={{flagicon|ESP}} Pablo Carreno Busta

| champd={{flagicon|SRB}} Nikola Ćaćić / {{flagicon|SRB}} Dušan Lajović

| after_year=2023

}}

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=

class="sortable wikitable"
width=70| Country

!width=175| Player

!Rank1

!Seed

{{flagu|USA}}

|John Isner

|20

|1

{{flag|CAN}}

|Félix Auger-Aliassime

|21

|2

{{flag|FRA}}

|Benoît Paire

|23

|3

{{flag|BUL}}

|Grigor Dimitrov

|25

|4

{{flag|SRB}}

|Dušan Lajović

|29

|5

{{flagu|USA}}

|Taylor Fritz

|30

|6

{{flag|GRB}}

|Kyle Edmund

|32

|7

{{flag|CAN}}

|Denis Shapovalov

|33

|8

  • 1 Rankings are as of September 16, 2019

=Other entrants=

The following players received wildcards into the singles main draw:

The following player received entry using a protected ranking into the singles main draw:

The following player received entry as a special exempt:

The following players received entry from the qualifying draw:

The following player received entry as a lucky loser:

=Withdrawals=

Doubles main-draw entrants

=Seeds=

class="sortable wikitable"
width="70"| Country

! width="175"| Player

! width="70"| Country

! width="175"| Player

! Rank1

! Seed

{{flag|CRO}}

|Ivan Dodig

|{{flag|SVK}}

|Filip Polášek

|53

|1

{{flag|GBR}}

|Dominic Inglot

|{{flagu|USA}}

|Austin Krajicek

|85

|2

{{flag|MEX}}

|Santiago González

|{{flag|SWE}}

|Robert Lindstedt

|111

|3

{{flag|ISR}}

|Jonathan Erlich

|{{flag|FRA}}

|Fabrice Martin

|129

|4

  • Rankings are as of September 16, 2019

=Other entrants=

The following pairs received wildcards into the doubles main draw:

Champions

=Singles=

{{main|2019 Chengdu Open – Singles}}

=Doubles=

{{main|2019 Chengdu Open – Doubles}}