1955 U.S. National Championships (tennis)
| 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 | |
| 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 | |
The 1955 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, New York. The tournament ran from 2 September until 11 September. It was the 75th staging of the U.S. National Championships, and the fourth Grand Slam tennis event of the year.