The 2014 Busan Open Challenger Tour was a professional tennis tournament played on hard courts. It was the thirteenth edition of the tournament which was part of the 2014 ATP Challenger Tour. It took place in Busan, South Korea between 12 and 18 May 2014.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Slovakia | Lukáš Lacko | 93 | 1 | |
 Japan | Go Soeda | 123 | 2 | |
 Luxembourg | ||||
| Rajeev Ram | 136 | 4 | ||
 Australia | Samuel Groth | 141 | 5 | |
| Japan | Tatsuma Ito | 143 | 6 | |
| Japan | ||||
| Jimmy Wang | 154 | 8 | ||
| Australia | John-Patrick Smith | 181 | 9 |
The following players received wildcards into the singles main draw:
Chung Hyeon Kim Cheong-eui Lee Duckhee Nam Ji-sungThe following players used protected ranking to gain entry into the singles main draw:
The following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Thailand | Sanchai Ratiwatana | Thailand | Sonchat Ratiwatana | 190 | 1 | |
| Australia | Alex Bolt | Australia | Andrew Whittington | 191 | 2 | |
 United Kingdom | Jamie Delgado | Australia | John-Patrick Smith | 199 | 3 | |
 Russian Federation | Victor Baluda | Russian Federation | Konstantin Kravchuk | 240 | 4 |
The following pairs received wildcards into the singles main draw:
Nam Ji-sung / Noh Sang-woo Chung Hyeon / Lim Yong-kyu
Gong Maoxin / Peng Hsien-yinThe following pairs received entry from the qualifying draw:
Go Soeda def. Jimmy Wang, 6–3, 7–6(7–5) Sanchai Ratiwatana / Sonchat Ratiwatana def. Jamie Delgado / John-Patrick Smith, 6–4, 6–4