2018 Busan Open
| 2018 Busan Open | |
|---|---|
| Date | 14–20 May |
| Edition | 17th |
| Draw | 32S / 16D |
| Surface | Hard |
| Location | Busan, South Korea |
| 2017 Champions | |
| Singles | |
 Vasek Pospisil | |
| Doubles | |
 Hsieh Cheng-peng / Peng Hsien-yin | |
The 2018 Busan Open was a professional tennis tournament played on hard courts. It was the seventeenth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Busan, South Korea between 14 and 20 May 2018.
Singles main draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 AUS
|
Matthew Ebden | 83 | 1 |
 IND
|
Yuki Bhambri | 86 | 2 |
| CAN
|
Vasek Pospisil | 88 | 3 |
| AUS
|
Jordan Thompson | 89 | 4 |
 ISR
|
Dudi Sela | 97 | 5 |
 SVK
|
Lukáš Lacko | 99 | 6 |
| TPE
|
Lu Yen-hsun | 111 | 7 |
 USA
|
Mackenzie McDonald | 114 | 8 |
* 1 Rankings as of May 7, 2018.
Other entrants
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Champions
Singles
vs.
Doubles
- / vs. /