| 1990 Suntory Japan Open Tennis Championships | ||||
|---|---|---|---|---|
| Date | 9–15 April | |||
| Edition | 17th | |||
| Category | Championship Series (ATP) Tier IV (WTA) | |||
| Prize money | $825,000 (ATP) $150,000 (WTA) | |||
| Surface | Hard / outdoor | |||
| Location | Tokyo, Japan | |||
| Venue | Ariake Coliseum | |||
| Champions | ||||
| Men's singles | ||||
 Stefan Edberg[1] | ||||
| Women's singles | ||||
| Catarina Lindqvist | ||||
| Men's doubles | ||||
 Mark Kratzmann /Wally Masur[2] | ||||
| Women's doubles | ||||
 Kathy Jordan /Elizabeth Smylie | ||||
| ||||
The1990 Suntory Japan Open Tennis Championships was a combined men's and women'stennis tournament played on outdoorhard courts at theAriake Coliseum inTokyo, Japan that was part of theChampionship Series of the1990 ATP Tour and ofTier IV category of the1990 WTA Tour. It was the 16th edition of the tournament and was held from 9 April through 15 April 1990. Second-seededStefan Edberg and first-seededCatarina Lindqvist won the singles titles.
Stefan Edberg defeatedAaron Krickstein 6–4, 7–5
Catarina Lindqvist defeatedElizabeth Smylie 6–3, 6–2
Mark Kratzmann /Wally Masur defeatedKent Kinnear /Brad Pearce 3–6, 6–3, 6–4
Kathy Jordan /Elizabeth Smylie defeatedHu Na /Michelle Jaggard 6–0, 3–6, 6–1