1900 U.S. National Championships (tennis)
| 1900 U.S. National Championships | |
|---|---|
| Date | 13 August - 21 August (M) 19 June - 23 June (W) |
| Edition | 20th |
| Category | Grand Slam |
| Surface | Grass |
| Location | Newport, R.I., United States (M) Philadelphia, PA, United States (W) |
| Champions | |
| Men's singles | |
 Malcolm Whitman [1] | |
| Women's singles | |
| Myrtle McAteer [1] | |
| Men's doubles | |
| Holcombe Ward / Dwight Davis [1] | |
| Women's doubles | |
| Hallie Champlin / Edith Parker [1] | |
| Mixed doubles | |
| Margaret Hunnewell / Alfred Codman [1] | |
List of champions of the 1900 U.S. National Championships tennis tournament (now known as the US Open). The men's tournament was held from 13 August to 21 August on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The women's tournament was held from 19 June to 23 June on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, PA. It was the 20th U.S. National Championships and the second Grand Slam tournament of the year.
Champions
Men's Singles
Malcolm Whitman defeated William Larned 6–4, 1–6, 6–2, 6–2
Women's Singles
Myrtle McAteer defeated Edith Parker 6–2, 6–2, 6–0
Men's Doubles
Holcombe Ward / Dwight Davis defeated Fred Alexander / Raymond Little 6–4, 9–7, 12–10
Women's Doubles
Hallie Champlin / Edith Parker defeated Marie Wimer / Myrtle McAteer 9–7, 6–2, 6–2
Mixed Doubles
Margaret Hunnewell / Alfred Codman defeated T. Shaw / George Atkinson 11–9, 6–3, 6–1