Lucas Pouille was the defending champion, but lost in the second round to John Millman. Marco Cecchinato won his first ATP title, defeating Millman in the final, 7–5, 6–4. Cecchinato was a lucky loser, the ninth in ATP Tour history to win a title.

Seeds

The top four seed (tennis), seeds received a bye (tennis), bye into the second round.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Lucky losers

Qualifying draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

References

External links

Main draw

Qualifying draw
{{DEFAULTSORT:Gazprom Hungarian Open - Singles, 2018 2018 ATP World Tour Hungarian Open (tennis), 2018 Singles