| 1955 U.S. National Championships | ||||
|---|---|---|---|---|
| Date | 2–11 September | |||
| Edition | 75th | |||
| Category | Grand Slam (ILTF) | |||
| Surface | Grass | |||
| Location | Chestnut Hill, Massachusetts Forest Hills, Queens,New York City United States | |||
| Venue | Longwood Cricket Club West Side Tennis Club | |||
| Champions | ||||
| Men's singles | ||||
 Tony Trabert[1] | ||||
| Women's singles | ||||
| Doris Hart | ||||
| Men's doubles | ||||
 Kosei Kamo /Atsushi Miyagi | ||||
| Women's doubles | ||||
| Louise Brough /Margaret Osborne duPont | ||||
| Mixed doubles | ||||
| Doris Hart /Vic Seixas | ||||
| ||||
The1955 U.S. National Championships (now known as theUS Open) was atennis tournament that took place on the outdoorgrass courts at theWest Side Tennis Club, Forest Hills inNew York City, New York. The tournament ran from 2 September until 11 September. It was the 75th staging of theU.S. National Championships, and the fourthGrand Slam tennis event of the year.
Tony Trabert (USA) defeated
Ken Rosewall (AUS) 9–7, 6–3, 6–3
Doris Hart (USA) defeated
Patricia Ward (GBR) 6–4, 6–2
Kosei Kamo (JPN) /Atsushi Miyagi (JPN) defeatedGerald Moss (USA) /Bill Quillian (USA) 6–2, 6–3, 3–6, 1–6, 6–4[2]
Louise Brough (USA) /Margaret Osborne duPont (USA) defeatedShirley Fry (USA) /Doris Hart (USA) 6–3, 1–6, 6–3[3]
Doris Hart (USA) /Vic Seixas (USA) defeatedShirley Fry (USA) /Gardnar Mulloy (USA) 7–5, 5–7, 6–2[4]
| Preceded by | Grand Slams | Succeeded by |