| Country | Japan |
|---|---|
| Residence | Unknown |
| Born | February 22, 1974 Chiba Prefecture, Japan[1] |
| Height | 1.66 m (5 ft 5 1⁄2 in) [2] |
| Turned pro | 1989 |
| Retired | 1998 |
| Career prize money | US$421,691 |
| Singles | |
| Career record | 121–125 |
| Career titles | 0 WTA, 0 ITF |
| Highest ranking | No. 28 (August 14, 1995) |
| Grand Slam results | |
| Australian Open | 4R (1995) |
| French Open | 4R (1995) |
| Wimbledon | 2R (1995) |
| US Open | 2R (1993, 1994) |
| Doubles | |
| Career record | 62-70 |
| Career titles | 2 WTA, 1 ITF |
| Highest ranking | No. 31 (June 19, 1995) |
Kyōko Nagatsuka (Japanese: 長塚京子, born February 22, 1974) is a retired Japanese female tennis player. She reached her career-high ranking of No. 28 in the world on August 14, 1995. In doubles, she reached as high as No. 31 on June 19, 1995.
She won the 12 and under junior championships of Japan in 1986, and the under 16 in 1989.[1]
Nagatsuka reached three singles finals on the WTA Tour, but failed to win the title in any of them. She did, however, win two doubles titles as well as achieving a further three runner-ups in doubles competition. She reached the fourth round of a Grand Slam twice in singles: at the 1995 Australian Open, where she beat a young Martina Hingis and Amy Frazier, and that same year at the French Open.
Since her retirement, she has briefly worked with Akiko Morigami.[1]