| Champ: |  Andy Murray |
| Runner: | Stan Wawrinka |
| Score: | 3–6, 6–4, 6–4 |
| Edition: | 4th |
| Draw: | 28 (4 / 3) |
| Seeds: | 8 |
| Type: | singles doubles |
| Main Name: | European Open (tennis) |
| Before Name: | European Open |
| After Name: | European Open |
See main article: article and 2019 European Open.
Kyle Edmund was the defending champion, but lost in the first round of qualifying to Norbert Gombos.
Andy Murray won the title, defeating Stan Wawrinka in the final, 3–6, 6–4, 6–4. This was Murray's first singles title since winning the 2017 Dubai Tennis Championships. This was also Murray's first appearance in an ATP singles final since returning to the ATP Tour after his career-saving hip resurfacing operation.[1]
The top four seeds receive a bye into the second round.