| 1975 U.S. Women's Open | |
| Dates: | July 17–20, 1975 |
| Location: | Northfield, New Jersey |
| Course: | Atlantic City Country Club |
| Org: | USGA |
| Tour: | LPGA Tour |
| Par: | 72 |
| Yardage: | [1] |
| Field: | 155 players, 50 after cut |
| Cut: | 158 (+14) |
| Purse: | $55,000 |
| Winners Share: | $8,045 |
| Champion: |  Sandra Palmer |
| Score: | 295 (+7) |
| Previous: | 1974 |
| Next: | 1976 |
The 1975 U.S. Women's Open was the 30th U.S. Women's Open, held July 17–20 at Atlantic City Country Club in Northfield, New Jersey, west of Atlantic City.
This champion was Sandra Palmer at 295 (+7), four strokes ahead of the three runners-up, JoAnne Carner, Sandra Post, and amateur Age 18 and a recent high school graduate, Lopez co-led after 36 holes
Sunday, July 21, 1974
| Place | Player | Score | To par | Money ($) | |||
|---|---|---|---|---|---|---|---|
| 1 | Sandra Palmer | 78-74-71-72=295 | +7 | 8,045 | |||
| align=center rowspan=3 | T2 | JoAnne Carner | 73-77-74-75=299 | align=center rowspan=3 | +11 | align=center rowspan=2 | 4,045 |
 Sandra Post | 74-73-76-76=299 | ||||||
| Nancy Lopez (a) | 73-74-77-75=299 | 0 | |||||
| 5 | Susie McAllister | 79-75-74-72=300 | +12 | 2,445 | |||
| 6 | Sandra Haynie | 74-77-74-76=301 | +13 | 2,245 | |||
| 7 | Kathy Whitworth | 76-76-75-75=302 | +14 | 2,045 | |||
| 8 | Debbie Austin | 76-76-72-79=303 | +15 | 1,945 | |||
| align=center rowspan=3 | T9 | Jocelyne Bourassa | 77-76-75-76=304 | align=center rowspan=3 | +16 | align=center rowspan=3 | 1,745 |
| Judy Rankin | 72-77-79-76=304 | ||||||
 Sally Little | 80-70-73-81=304 |