1923 U.S. National Championships (tennis)
| 1923 U.S. National Championships | |
|---|---|
| Date | 10 September – 15 September (M) 13 August – 18 August (W) |
| Edition | 43rd |
| Category | Grand Slam (ITF) |
| Surface | Grass |
| Location | Philadelphia, PA, United States |
| Venue | Germantown Cricket Club |
| Champions | |
| Men's singles | |
 Bill Tilden [1] | |
| Women's singles | |
| Helen Wills Moody [1] | |
| Men's doubles | |
Bill Tilden /  Brian Norton [2] | |
| Women's doubles | |
 Kitty McKane / Phyllis Howkins Covell [3] | |
| Mixed doubles | |
| Molla Bjurstedt Mallory / Bill Tilden [4] | |
The 1923 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the Germantown Cricket Club in Philadelphia, PA, United States. The tournament ran from 10 September until 15 September. It was the 43rd staging of the U.S. National Championships and the fourth Grand Slam tennis event of the year.
Champions
Men's Singles
Bill Tilden defeated Bill Johnston 6–4, 6–1, 6–4
Women's Singles
Helen Wills defeated Molla Mallory 6–2, 6–1
Men's doubles
Bill Tilden / Brian Norton defeated Richard Norris Williams / Watson Washburn 3–6, 6–2, 6–3, 5–7, 6–2
Women's doubles
Kitty McKane / Phyllis Howkins Covell defeated Hazel Hotchkiss Wightman / Eleanor Goss 2–6, 6–2, 6–1
Mixed doubles
Molla Mallory / Bill Tilden defeated Kitty McKane / 
John Hawkes 6–3, 2–6, 10–8