| 1973 Japan Open Tennis Championships | |
|---|---|
| Date | 8 – 14 October |
| Edition | 1st |
| Category | Grand Prix (B) |
| Prize money | $60,000 |
| Surface | Hard / outdoor |
| Location | Tokyo, Japan |
| Champions | |
| Men's Singles | |
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| Women's Singles | |
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| Men's Doubles | |
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The 1973 Fred Perry Japan Open Tennis Championships was a combined men's and women's tennis tournament played on outdoor hard courts and took place in Tokyo, Japan. The tournament was held from 8 October through 14 October 1973. The men's events were part of the 1973 Commercial Union Assurance Grand Prix circuit and graded as B category whereas the women's competition was a non-tour event. Ken Rosewall won the men's singles title, earning him the $12,000 first prize, while Evonne Goolagong won the women's singles event and received $5,000.
Ken Rosewall defeated
John Newcombe, 6–1, 6–4
Mal Anderson /
Ken Rosewall defeated
Colin Dibley /
Allan Stone, 7–5, 7–5