1966 U.S. National Championships – Women's singles
| Women's singles | |
|---|---|
| 1966 U.S. National Championships | |
| Champion | Maria Bueno |
| Runner-up | Nancy Richey |
| Score | 6–3, 6–1 |
| Draw | 64 |
| Seeds | 8 |
Second-seeded Maria Bueno defeated Nancy Richey 6–3, 6–1 in the final to win the women's singles tennis title at the 1966 U.S. National Championships.