2018 Open Castilla y León – Men's singles
| Men's singles | |
|---|---|
| 2018 Open Castilla y León | |
| Champion | Ugo Humbert |
| Runner-up | Adrián Menéndez Maceiras |
| Score | 6–3, 6–4 |
Jaume Munar was the defending champion but chose not to defend his title.
Ugo Humbert won the title after defeating Adrián Menéndez Maceiras 6–3, 6–4 in the final.