Seiko Okamoto (岡本 聖子, Okamoto Seiko) (born 14 March 1978) is a former Japanese professional tennis player.

Seiko Okamoto
岡本 聖子
Country (sports) Japan
Born (1978-03-14) 14 March 1978 (age 41)
Turned pro2000
Prize money$207,531
Career record264–264
Career titles2 ITF
Highest rankingNo. 178 (16 January 2006)
Grand Slam Singles results
Australian OpenQ2 (2008)
French OpenQ1 (2006)
WimbledonQ3 (2005)
US OpenQ2 (2005)
Career record223–166
Career titles1 WTA, 15 ITF
Highest rankingNo. 123 (1 November 2004)
Grand Slam Doubles results
Australian Open1R (2004, 2005)

Okamoto took part in the 2006 Bangalore Open but lost in the first round of singles qualifying and the first round of doubles alongside Ryōko Fuda. She has stated that her favorite surface to play on is hardcourt.

In her career, Okamoto won one doubles title on the WTA Tour, as well as two singles and 15 doubles titles on the ITF Women's Circuit.

WTA career finalsEdit

Doubles: 1 (1–0)Edit

Grand Slam tournaments (0–0)
WTA Championships (0–0)
Tier I (0–0)
Tier II (0–0)
Tier III (0–0)
Tier IV & V (1–0)
Outcome No. Date Tournament Surface Partner Opponents Score
Winner 1. 16 January 2004 Hobart, Australia Hard   Shinobu Asagoe   Els Callens
  Barbara Schett
2–6, 6–4, 6–3