Kyōko Nagatsuka

Kyōko Nagatsuka (, born February 22, 1974) is a Japanese former professional tennis player. She achieved a career-high ranking of world No. 28 on 14 August 1995. In doubles, she reached as high as No. 31 in June 1995.

She won the 12-and-under championships of Japan in 1986, and the under-16 in 1989.

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 tournament 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.

Playing for the Japan Fed Cup team, she has a win–loss record of 2–4.

Since her retirement, she has briefly worked as a coach with Akiko Morigami.

WTA Tour finals Singles: 3 (runner-ups)

Doubles: 5 (2 titles, 3 runner-ups)

ITF Circuit finals $50,000 tournaments$25,000 tournaments$10,000 tournaments

Singles (0–2) ResultNo.DateTournamentSurfaceOpponentScoreLoss 1. 1 March 1992 ITF Miami, United States Hard Caroline Kuhlman 6–4, 2–6, 5–7Loss 2. 5 October 1997 ITF Santa Clara, United States Hard Magdalena Grzybowska 1–6, 5–7

Doubles (1–2) ResultNo.DateTournamentSurfacePartnerOpponentsScoreWin 1. 21 June 1992 ITF Milano, Italy Clay Miki Yokobori Luciana Tella Andrea Vieira 3–6, 6–1, 6–3Loss 2. 12 June 1994 ITF Caserta, Italy Clay Mami Donoshiro Flora Perfetti Virág Csurgó 1–6, 5–7Loss 3. 16 March 1998 ITF Noda, Japan Hard Saori Obata Keiko Ishida Keiko Nagatomi 6–3, 2–6, 3–6