The 1975 Virginia Slims of Washington was a women's tennis tournament played on indoor carpet courts at the James Robinson School Field House in Fairfax, Virginia in the United States that was part of the 1975 Virginia Slims World Championship Series. It was the fourth edition of the tournament and was held from January 27 through February 2, 1975.[1] Eighth-seeded Martina Navratilova won the singles title and earned $15,000 first-prize money. In the quarterfinal she had defeated Chris Evert for the first time in their rivalry, after five consecutive wins for Evert.[2]
Martina Navratilova defeated 
Kerry Melville 6–3, 6–1
Françoise Dürr / Betty Stöve defeated Helen Gourlay / Kerry Melville 6–3, 6–4
| Event | W | F | 3rd | 4th | QF | Round of 16 | Round of 32 | ||
| style=background:#f3f3f3 | Singles | $15,000 | $8,000 | $4,600 | $3,800 | $2,100 | $1,100 | $550 |
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