1938 U.S. National Championships – Women's singles
| Women's singles | |
|---|---|
| 1938 U.S. National Championships | |
| Champion | Alice Marble |
| Runner-up | Nancye Wynne |
| Score | 6–0, 6–3 |
| Draw | 64 |
| Seeds | 16 |
Second-seeded Alice Marble defeated Nancye Wynne 6–0, 6–3 in the final to win the women's singles tennis title at the 1938 U.S. National Championships.