1988 Suntory Japan Open Tennis Championships

The 1988 Suntory Japan Open Tennis Championships was a tennis tournament played on outdoor hard courts at the Ariake Coliseum in Tokyo in Japan that was part of the 1988 Nabisco Grand Prix and of the Category 2 tier of the 1988 WTA Tour. The tournament ran from 11 April through 17 April 1988. John McEnroe and Patty Fendick won the singles titles.

Men's singles
🇺🇸 John McEnroe defeated 🇸🇪 Stefan Edberg 6–2, 6–2
 * It was McEnroe's 1st title of the year and the 135th of his career.

Women's singles
🇺🇸 Patty Fendick defeated 🇺🇸 Stephanie Rehe 6–3, 7–5
 * It was Fendick's 4th title of the year and the 4th of her career.

Men's doubles
🇦🇺 John Fitzgerald / 🇺🇸 Johan Kriek defeated 🇺🇸 Steve Denton / 🇺🇸 David Pate 6–4, 6–7, 6–4
 * It was Fitzgerald's 3rd title of the year and the 20th of his career. It was Kriek's 2nd title of the year and the 22nd of his career.

Women's doubles
🇺🇸 Gigi Fernández / 🇺🇸 Robin White defeated 🇺🇸 Lea Antonoplis / 🇺🇸 Barbara Gerken 6–1, 6–4
 * It was Fernández's 1st title of the year and the 9th of her career. It was White's 1st title of the year and the 7th of her career.