Jürgen Melzer was the defending champion but chose not to defend his title.
Vasek Pospisil won the title after defeating
Nicola Kuhn 7–6
(7–3), 3–6, 6–3 in the final.
Seeds
Draw
Finals
Top half
Bottom half
References
Main DrawQualifying Draw
{{DEFAULTSORT:2018 Hungarian Challenger Open - Singles
Hungarian Challenger Open - Singles