1928 U.S. National Championships – Women's singles
# 1928 U.S. National Championships – Women's singles

First-seeded Helen Wills defeated Helen Jacobs 6–2, 6–1 in the final to win the women's singles tennis title at the 1928 U.S. National Championships. The event was held at the West Side Tennis Club, Forest Hills, New York City. It was Wills's fifth U.S. National singles title and her second in a row.

## Seeds

The tournament assigned eight seeded players for the women's singles event. Helen Wills is the champion; others show in brackets the round in which they were eliminated.

* Helen Wills (champion)
* Molla Mallory (semifinals)
* Helen Jacobs (finalist)
* Edith Cross (semifinals)
* Charlotte Hosmer Chapin (quarterfinals)
* Marjorie Morrill (quarterfinals)
* Penelope Anderson (quarterfinals)
* May Sutton Bundy (third round)

## Draw

### Final eight

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals |
| - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | Helen Wills | 6 | 6 | | | | | | | | | |
| 5 | Charlotte Hosmer Chapin | 2 | 4 | | | | | | | | | |
| 5 | Charlotte Hosmer Chapin | 2 | 4 | | 1 | Helen Wills | 6 | 6 | | | | |
| | | | | | 4 | Edith Cross | 0 | 1 | | | | |
| | Hazel Hotchkiss Wightman | 3 | 4 | | 4 | Edith Cross | 0 | 1 | | | | |
| 4 | Edith Cross | 6 | 6 | | | | | | | | | |
| 4 | Edith Cross | 6 | 6 | | | | | | 1 | Helen Wills | 6 | 6 |
| | | | | | | | | | 3 | Helen Jacobs | 2 | 1 |
| 3 | Helen Jacobs | 6 | 6 | | | | | | | | | | 3 | Helen Jacobs | 2 | 1 |
| 5 | Penelope Anderson | 4 | 1 | | | | | | | | | |
| 5 | Penelope Anderson | 4 | 1 | | 3 | Helen Jacobs | 6 | 7 | | | | |
| | | | | | 2 | Molla Mallory | 2 | 5 | | | | |
| 6 | Marjorie Morrill | 2 | 6 | 3 | 2 | Molla Mallory | 2 | 5 | | | | |
| 2 | Molla Mallory | 6 | 3 | 6 | | | | | | | | |
