| Date: | 28 August – 2 September |
| Edition: | 1st |
| Surface: | Hard |
| Location: | Manacor, Spain |
| Champs: |  Bernard Tomic |
| Champd: | Ariel Behar /  Enrique López Pérez |
The 2018 Rafa Nadal Open Banc Sabadell was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Manacor, Spain between 28 August – 2 September 2018.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Italy | Thomas Fabbiano | 110 | 1 | |
| Spain | Pablo Andújar | 127 | 2 | |
 India | Ramkumar Ramanathan | 134 | 3 | |
 Ukraine | Sergiy Stakhovsky | 138 | 4 | |
| Mats Moraing | 152 | 5 | ||
| Australia | Bernard Tomic | 153 | 6 | |
| Spain | Enrique López Pérez | 159 | 7 | |
| Spain | Sergio Gutiérrez Ferrol | 164 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Enzo Couacaud
Teymuraz GabashviliThe following player received entry as a lucky loser:
See main article: 2018 Rafa Nadal Open Banc Sabadell – Singles.
Bernard Tomic def. Matthias Bachinger 4–6, 6–3, 7–6(7–3).See main article: 2018 Rafa Nadal Open Banc Sabadell – Doubles.
Enrique López Pérez def. 
Dan Evans / Gerard Granollers walkover.
