The 1963 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from 28 August until 8 September. It was the 83rd staging of the U.S. National Championships, and the fourth Grand Slam tennis event of 1963.
| 1963 U.S. National Championships | |
|---|---|
| Date | 28 August – 8 September |
| Edition | 83rd |
| Category | Grand Slam (ITF) |
| Surface | Grass |
| Location | Forest Hills, Queens New York City, United States |
| Venue | West Side Tennis Club |
| Champions | |
| Men's singles | |
 Rafael Osuna[1] | |
| Women's singles | |
 Maria Bueno | |
| Men's doubles | |
 Chuck McKinley / Dennis Ralston | |
| Women's doubles | |
 Robyn Ebbern / Margaret Smith | |
| Mixed doubles | |
| Margaret Smith / Ken Fletcher | |
Finals
Men's singles
Rafael Osuna defeated Frank Froehling 7–5, 6–4, 6–2
Women's singles
Maria Bueno defeated Margaret Smith 7–5, 6–4
Men's doubles
Chuck McKinley / Dennis Ralston defeated Rafael Osuna / Antonio Palafox 9–7, 4–6, 5–7, 6–3, 11–9 [2]
Women's doubles
Robyn Ebbern / Margaret Smith defeated Maria Bueno / Darlene Hard, 4–6, 10–8, 6–3 [3]
Mixed doubles
Margaret Smith / Ken Fletcher defeated Judy Tegart / Ed Rubinoff 3–6, 8–6, 6–2 [4]