| Kim Sun-yong | |
| Birth Date: | 26 May 1987 |
| Birth Place: | Seoul, South Korea |
| Plays: | Right-handed |
| Singlesrecord: | 3-1 |
| Highestsinglesranking: | No. 660 (8 May 2006) |
| Highestdoublesranking: | No. 327 (10 July 2006) |
| Medaltemplates-Expand: | yes |
Kim Sun-yong Jr. (born 26 May 1987) is a South Korean former professional tennis player.
Kim, who was born in Seoul, won the junior doubles title at the 2005 Australian Open, partnering Taiwan's Yi Chu-huan. He was runner-up in the boys' singles event to Donald Young and was also a singles semi-finalist at the 2005 US Open juniors.[1]
A right-handed player, Kim featured in three Davis Cup ties for South Korea. In 2005 he won both of his singles matches against Pacific Oceania, then played a dead rubber in the Group II final against New Zealand, which he lost to Jose Statham.[2] His only other appearance came in 2007, when he won in the singles against Dmitriy Makeyev of Kazakhstan.