1951 U.S. National Championships – Women's singles

Fourth-seeded Maureen Connolly defeated Shirley Fry 6–3, 1–6, 6–4 in the final to win the women's singles tennis title at the 1951 U.S. National Championships.

Seeds
The tournament used two lists for seeding the women's singles event; one for U.S. players and one for foreign players. Maureen Connolly is the champion; others show in brackets the round in which they were eliminated.

1. 🇺🇸 Doris Hart (semifinals)

2. 🇺🇸 Shirley Fry (finalist)

3. 🇺🇸 Patricia Canning Todd (third round)

4. 🇺🇸 Maureen Connolly (champion)

5. 🇺🇸 Nancy Chaffee (quarterfinals)

6. 🇺🇸 Beverly Baker (third round)

7. 🇺🇸 Betty Rosenquest (second round)

1. 🇬🇧 Jean Walker-Smith (semifinals)

2. 🇬🇧 Jean Quertier (quarterfinals)

3. 🇬🇧 Kay Tuckey (quarterfinals)

4. 🇬🇧 Joy Mottram (third round)

5. 🇬🇧 Patricia Ward (third round)

6. 🇬🇧 Helen Fletcher (first round)

Key

 * Q = Qualifier
 * WC = Wild card
 * LL = Lucky loser
 * r = Retired