2001 AIG Japan Open Tennis Championships

The 2001 AIG 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 International Series Gold of the 2001 ATP Tour and of Tier III of the 2001 WTA Tour. The tournament ran from October 1 through October 7, 2001. Lleyton Hewitt and Monica Seles won the singles titles.

Men's singles
🇦🇺 Lleyton Hewitt defeated Michel Kratochvil 6–4, 6–2
 * It was Hewitt's 5th title of the year and the 13th of his career.

Women's singles
🇺🇸 Monica Seles defeated 🇹🇭 Tamarine Tanasugarn 6–3, 6–2
 * It was Seles' 3rd title of the year and the 56th of her career.

Men's doubles
🇺🇸 Rick Leach / 🇦🇺 David Macpherson defeated 🇦🇺 Paul Hanley / 🇦🇺 Nathan Healey 1–6, 7–6(8–6), 7–6(7–4)
 * It was Leach's 1st title of the year and the 41st of his career. It was Macpherson's 2nd title of the year and the 15th of his career.

Women's doubles
Liezel Huber / 🇦🇺 Rachel McQuillan defeated Janet Lee /  Wynne Prakusya 6–2, 6–0
 * It was Huber's 2nd title of the year and the 2nd of her career. It was McQuillan's only title of the year and the 5th of her career.