The 1973 U.S. Women's Open was the 28th U.S. Women's Open, held July 19–22 at the Country Club of Rochester in Rochester, New York.

Defending champion Susie Berning won the third of her three U.S. Women's Open titles, five strokes ahead of runners-up Gloria Ehret and Shelley Hamlin. After a three-under 69 in the third round, Berning was the co-leader with Pam Higgins, two strokes ahead of 36-hole leader Sharon Miller.

Berning was the third of seven to successfully defend the championship, following Mickey Wright in 1959 and Donna Caponi in 1970; it was the last of her four major titles.

The championship was held at the course twenty years earlier in 1953, the first Women's Open conducted by the United States Golf Association (USGA). It was the second consecutive Women's Open played in the state of New York; the 1972 edition was at Winged Foot in Mamaroneck.

Sunday, July 22, 1973

Place	Player	Score	To par	Money ($)
1	Susie Berning	72-77-69-72=290	+2	6,000
T2	Gloria Ehret	75-75-74-71=295	+7	2,500
	Shelley Hamlin	76-70-75-74=295
4	Anne Sander (a)	74-72-76-74=296	+8	0
5	Pam Higgins	72-76-70-79=297	+9	1,600
T6	Mary Mills	74-73-75-76=298	+10	1,400
	Sandra Palmer	76-72-74-76=298
	Judy Rankin	77-72-75-74=298
T9	Jane Blalock	78-76-72-73=299	+11	$1,117
	Mary Lou Crocker	75-78-69-77=299
	Sue Roberts	71-81-73-74=299

Source:

• Golf Observer final leaderboard
• U.S. Women's Open Golf Championship
• U.S. Women's Open – past champions – 1973
• Country Club of Rochester

43°07′23″N 77°32′13″W / 43.123°N 77.537°W / 43.123; -77.537