| Date: | 14–20 October |
| Edition: | 4th |
| Category: | ATP Tour 250 series |
| Prize Money: | €635,750 |
| Draw: | 28S / 16D |
| Surface: | Hard / indoor |
| Location: | Antwerp, Belgium |
| Champs: |  Andy Murray |
| Champd: | Kevin Krawietz / Andreas Mies |
| Main Name: | European Open (tennis) European Open |
The 2019 European Open was a men's tennis tournament played on indoor hard courts. It was the fourth edition of the European Open and part of the ATP Tour 250 series of the 2019 ATP Tour. It took place at the Lotto Arena in Antwerp, Belgium, from October 14 to October 20.[1]
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 France | Gaël Monfils | 11 | 1 | ||
 Belgium | David Goffin | 14 | 2 | ||
 Argentina | Diego Schwartzman | 16 | 3 | ||
| Stan Wawrinka | 20 | 4 | |||
| Argentina | Guido Pella | 21 | 5 | ||
| France | Jo-Wilfried Tsonga | 35 | 6 | ||
| Jan-Lennard Struff | 38 | 7 | |||
| Pablo Cuevas | 48 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry using a protected ranking into the singles main draw:
The following players received entry from the qualifying draw:
Benoît Paire → replaced by 
Hugo Dellien
Albert Ramos Viñolas → replaced by 
Kwon Soon-woo
Milos Raonic → replaced by Peter Gojowczyk| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Kevin Krawietz | Andreas Mies | 26 | 1 | |||
| Rajeev Ram | United Kingdom | Joe Salisbury | 35 | 2 | ||
 Austria | Oliver Marach | Austria | Jürgen Melzer | 53 | 3 | |
| Belgium | Sander Gillé | Belgium | Joran Vliegen | 83 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry as alternates:
See main article: 2019 European Open – Singles.
Andy Murray defeated Stan Wawrinka, 3–6, 6–4, 6–4See main article: 2019 European Open – Doubles.
Rajeev Ram / Joe Salisbury, 7–6(7–1), 6–3
