| 2017-06-17 | UFC Fight Night: Holm vs. Correia | Welterweight | Colby Covington def. Kim Dong-hyun | Decision (unanimous) (30–25, 30–26, 30–27) | 3 | 5:00 |
| 2016-12-30 | UFC 207: Nunes vs. Rousey | Welterweight | Kim Dong-hyun def. Tarec Saffiedine | Decision (split) (27–30, 29–28, 29–28) | 3 | 5:00 |
| 2015-11-28 | UFC Fight Night: Henderson vs. Masvidal | Welterweight | Kim Dong-hyun def. Dominic Waters | TKO (punches) | 1 | 3:11 |
| 2015-05-23 | UFC 187: Johnson vs. Cormier | Welterweight | Kim Dong-hyun def. Josh Burkman | Submission (arm-triangle choke) | 3 | 2:13 |
| 2014-08-23 | UFC Fight Night: Bisping vs. Le | Welterweight | Tyron Woodley def. Kim Dong-hyun | TKO (punches) | 1 | 1:01 |
| 2014-03-01 | The Ultimate Fighter China Finale: Kim vs. Hathaway | Welterweight | Kim Dong-hyun def. John Hathaway | KO (spinning elbow) | 3 | 1:02 |
| 2013-10-09 | UFC Fight Night: Maia vs. Shields | Welterweight | Kim Dong-hyun def. Erick Silva | KO (punch) | 2 | 3:01 |
| 2013-03-03 | UFC on Fuel TV: Silva vs. Stann | Welterweight | Kim Dong-hyun def. Siyar Bahadurzada | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2012-11-10 | UFC on Fuel TV: Franklin vs. Le | Welterweight | Kim Dong-hyun def. Paulo Thiago | Decision (unanimous) (30–26, 30–27, 30–27) | 3 | 5:00 |
| 2012-07-07 | UFC 148: Silva vs. Sonnen II | Welterweight | Demian Maia def. Kim Dong-hyun | TKO (rib injury) | 1 | 0:47 |
| 2011-12-30 | UFC 141: Lesnar vs. Overeem | Welterweight | Kim Dong-hyun def. Sean Pierson | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2011-07-02 | UFC 132: Cruz vs. Faber | Welterweight | Carlos Condit def. Kim Dong-hyun | KO (flying knee and punches) | 1 | 2:58 |
| 2011-01-01 | UFC 125: Resolution | Welterweight | Kim Dong-hyun def. Nate Diaz | Decision (unanimous) (29–28, 29–28, 29–28) | 3 | 5:00 |
| 2010-05-29 | UFC 114: Rampage vs. Evans | Welterweight | Kim Dong-hyun def. Amir Sadollah | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2009-07-11 | UFC 100 | Welterweight | Kim Dong-hyun def. T. J. Grant | Decision (unanimous) (30–26, 30–26, 30–26) | 3 | 5:00 |
| 2009-01-31 | UFC 94: St-Pierre vs. Penn 2 | Welterweight | Karo Parisyan vs. Kim Dong-hyun | No Contest (overturned) | 3 | 5:00 |
| 2008-09-06 | UFC 88: Breakthrough | Welterweight | Kim Dong-hyun def. Matt Brown | Decision (split) (29–28, 28–29, 29–28) | 3 | 5:00 |
| 2008-05-24 | UFC 84: Ill Will | Welterweight | Kim Dong-hyun def. Jason Tan | TKO (elbows) | 3 | 0:25 |