| 1966 Titleholders Championship | |
| Dates: | November 24–27, 1966 |
| Location: | Augusta, Georgia |
| Course: | Augusta Country Club |
| Tour: | LPGA Tour |
| Format: | Stroke play – 72 holes |
| Par: | 72 |
| Yardage: | [1] |
| Purse: | $10,000 |
| Winners Share: | $1,500 |
| Champion: |  Kathy Whitworth |
| Score: | 291 (+3) |
| Previous: | 1965 |
| Next: | 1972 |
The 1966 Titleholders Championship was the 27th Titleholders Championship, held November 24–27 at Augusta Country Club in Augusta, Georgia. Reigning champion Kathy Whitworth successfully defended her title and won the second of her six major titles, two strokes ahead of runners-up Judy Kimball and Mary Mills.[2]
It was Whitworth's 28th victory on the LPGA Tour and ninth of the 1966 season.
Mills was the 54-hole leader at 217 (+1), with Whitworth and Kimball a stroke back.
This was the last time the championship was held in Augusta; it took a hiatus and resumed six years later for one time only in 1972 in North Carolina.
Sunday, November 27, 1966
| Place | Player | Score | To par | Money ($) | |||
|---|---|---|---|---|---|---|---|
| 1 | Kathy Whitworth | 74-70-74-73=291 | +3 | 1,500 | |||
| align=center rowspan=2 | T2 | Judy Kimball | 73-72-73-75=293 | align=center rowspan=2 | +5 | align=center rowspan=2 | 1,100 |
| Mary Mills | 73-71-73-76=293 | ||||||
| 4 | Judy Rankin | 75-76-70-73=294 | +6 | 800 | |||
| 5 | Betsy Rawls | 77-73-72-74=296 | +8 | 675 | |||
| 6 | Marilynn Smith | 75-78-74-70=297 | +9 | 560 | |||
| 7 | Marlene Hagge | 74-72-78-74=298 | +10 | 480 | |||
| 8 | Shirley Englehorn | 74-74-74-77=299 | +11 | 420 | |||
| 9 | Sandra Spuzich | 75-77-75-74=301 | +13 | 370 | |||
| 10 | Peggy Wilson | 77-79-75-72=303 | +15 | 330 |