| 2011 Busan Open Challenger Tennis | |
|---|---|
| Date | 9–15 May |
| Edition | 9th |
| Surface | Hard |
| Location | Busan, South Korea |
| Champions | |
| Singles | |
 Dudi Sela | |
| Doubles | |
 Im Kyu-tae /  Danai Udomchoke | |
The 2011 Busan Open Challenger Tennis was a professional tennis tournament played on hard courts. It was the ninth edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Busan, South Korea between 9 and 15 May 2011.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 TPE | Lu Yen-Hsun | 55 | 1 |
 JPN | Go Soeda | 117 | 2 |
| JPN | Tatsuma Ito | 130 | 3 |
| ISR | Dudi Sela | 139 | 4 |
 AUS | Matthew Ebden | 184 | 5 |
| JPN | Yūichi Sugita | 206 | 6 |
| THA | Danai Udomchoke | 241 | 7 |
 GER | Andre Begemann | 255 | 8 |
The following players received wildcards into the singles main draw:
Jeong Suk-young Kim Hyun-joon Lu Yen-hsun Nam Ji-sungThe following players received entry from the qualifying draw:
Dudi Sela def. Tatsuma Ito, 6–2, 6–7(5), 6–3
Im Kyu-tae / Danai Udomchoke def. 
Jamie Baker / 
Vasek Pospisil, 6–4, 6–4
The 2010 Busan Open Challenger Tennis was a professional tennis tournament played on outdoor hard courts. It was part of the 2010 ATP Challenger Tour. It took place in Busan, South Korea between May 10 and May 16, 2010.
The 2009 Busan Open Challenger Tennis was a professional tennis tournament played on outdoor hard courts. It is part of the 2009 ATP Challenger Tour. It took place in Busan, South Korea between May 11 and May 17, 2009.
The 2011 ATP China Challenger International was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Wuhai, China between 25 and 31 July 2011.
The 2011 Samsung Securities Cup was a professional tennis tournament played on hard courts. It was the 12th edition and the 1st edition of the tournament which was part of the 2011 ATP Challenger Tour and the 2011 ITF Women's Circuit. It took place in Seoul, South Korea between 17 and 23 October 2011.
The 2012 Busan Open Challenger Tennis was a professional tennis tournament played on hard courts. It was the tenth edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Busan, South Korea between 7 and 13 May 2012.
The 2013 Busan Open Challenger Tennis was a professional tennis tournament played on hard courts. It was the twelfth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Busan, South Korea between 13 and 19 May 2013.
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.
The 2015 Busan Open was a professional tennis tournament played on hard courts. It was the fourteenth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Busan, South Korea between 4 and 10 May 2015.
The 2016 Busan Open was a professional tennis tournament played on hard courts. It was the fifteenth edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Busan, South Korea between 2 and 8 May 2016.
The 2017 Busan Open was a professional tennis tournament played on hard courts. It was the sixteenth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Busan, South Korea between 15 and 21 May 2017.
The 2018 Seoul Open Challenger was a professional tennis tournament played on outdoor hard courts. It was the fourth edition of the tournament. It was part of the 2018 ATP Challenger Tour. It took place in Seoul, South Korea, between 30 April and 6 May 2018.
The 2018 Gimcheon Open ATP Challenger was a professional tennis tournament played on hard courts. It was the fifth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Gimcheon, Korea between 7 and 13 May 2018.
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.
The 2019 Busan Open was a professional tennis tournament played on hard courts. It was the eighteenth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Busan, South Korea between 6 and 12 May 2019.
The 2019 Gwangju Open was a professional tennis tournament played on hard courts. It was the 4th edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Gwangju, South Korea between 13 and 19 May 2019.
The 2019 Columbus Challenger II was a professional tennis tournament played on hard courts. It was the seventh edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Columbus, United States between 10 and 16 June 2019.
The 2019 President's Cup was a professional tennis tournament played on outdoor hard courts. It was the fourteenth (ATP) and eleventh (ITF) editions of the tournament and was part of the 2019 ATP Challenger Tour and the 2019 ITF Women's World Tennis Tour. It took place in Nur-Sultan, Kazakhstan, on 15–21 July 2019.
The 2022 President's Cup was a professional tennis tournament played on outdoor hard courts. It was the seventeenth edition of the men's tournament which was part of the 2022 ATP Challenger Tour, and the thirteenth edition of the women's tournament which was part of the 2022 ITF Women's World Tennis Tour. It took place in Nur-Sultan, Kazakhstan between 18 and 24 July 2022.
The 2022 Busan Open was a professional tennis tournament played on hard courts. It was the 19th edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Busan, South Korea between 17 and 23 October 2022.
The 2023 Busan Open was a professional tennis tournament played on hard courts. It was the 20th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Busan, South Korea between 8 and 14 May 2023.
