| 1970 U.S. Women's Open | |
| Dates: | July 2–5, 1970 |
| Location: | Muskogee, Oklahoma |
| Course: | Muskogee Country Club |
| Org: | USGA |
| Tour: | LPGA Tour |
| Format: | Stroke play – 72 holes |
| Par: | 71 |
| Yardage: | 6210yd[1] |
| Purse: | $30,000 |
| Winners Share: | $5,000 |
| Champion: |  Donna Caponi |
| Score: | 287 (+3) |
| Previous: | 1969 |
| Next: | 1971 |
The 1970 U.S. Women's Open was the 25th U.S. Women's Open, held July 2–5 at Muskogee Country Club in Muskogee, Oklahoma.
Defending champion Donna Caponi won the second of her four major titles, one stroke ahead of runners-up Sandra Haynie and Sandra Spuzich. Caponi's four-foot (1.3 m) putt for a double bogey on the final hole hung on the lip before falling to avoid a Monday playoff.[2] She was the second of seven to successfully defend the championship, following Mickey Wright in 1959. Caponi entered the final round with a four-stroke lead and shot a 77 (+6).[1] [2]
Sunday, July 5, 1970
| Place | Player | Score | To par | Money ($) | |||
|---|---|---|---|---|---|---|---|
| 1 | Donna Caponi | 69-70-71-77=287 | +3 | 5,000 | |||
| align=center rowspan=2 | T2 | Sandra Haynie | 71-72-71-74=288 | align=center rowspan=2 | +4 | align=center rowspan=2 | 2,000 |
| Sandra Spuzich | 72-72-70-74=288 | ||||||
| align=center rowspan=2 | T4 | Kathy Whitworth | 71-71-76-71=289 | align=center rowspan=2 | +5 | align=center rowspan=2 | 1,100 |
| Sandra Palmer | 73-71-71-74=289 | ||||||
| 6 | Sharon Miller | 70-77-74-69=290 | +6 | 900 | |||
| 7 | Jo Ann Prentice | 72-75-70-74=291 | +7 | 850 | |||
| 8 | Carol Mann | 69-70-77-76=292 | +8 | 800 | |||
| align=center rowspan=2 | T9 | Clifford Ann Creed | 73-73-74-73=293 | align=center rowspan=2 | +9 | align=center rowspan=2 | 725 |
| Shirley Englehorn | 70-74-74-75=293 |