| Jung Sung-il | |
| Country: | South Korea |
| Birth Date: | 21 October 1969[1] |
| Retired: | 1996 |
| Hangul: | 정성일 |
| Hanja: | 鄭星佚 |
| Rr: | Jeong Seong-il |
| Mr: | Chŏng Sŏng-il |
Jung Sung-il (October 21, 1969) is a South Korean retired competitive figure skater. He is the 1991 Winter Universiade silver medalist. He placed as high as sixth at the World Junior Championships (1988) and 14th at the World Championships (1991). A three-time Olympian, he placed 22nd at the 1988 Winter Olympics, 21st at the 1992 Winter Olympics, and 17th at the 1994 Winter Olympics.
Following his retirement from competitive skating in 1996,[2] Jung became a coach. His former students include Choi Young-eun and Lee Dong-whun.
From 2003 to 2010, Jung toured with Disney on Ice's "100 Years of Magic" show. In 2010, he returned to South Korea to work as a coach.
| International | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Event | 85–86 | 86–87 | 87–88 | 88–89 | 89–90 | 90–91 | 91–92 | 92–93 | 93–94 | 94–95 | |||
| align=left | 22nd | 21st | 17th | ||||||||||
| align=left | 22nd | 15th | 14th | 20th | 20th | ||||||||
| align=left | 4th | 5th | 9th | 4th | 9th | 7th | |||||||
| align=left | 10th | ||||||||||||
| align=left | bgcolor=silver | 2nd | |||||||||||
| International: Junior | |||||||||||||
| align=left | 15th | 8th | 18th | 6th | |||||||||
| National | |||||||||||||
| align=left | |||||||||||||
| J = Junior level |