| 1901 U.S. National Championships | |
|---|---|
| Date | August 19–27 (M) June 25–29 (W) |
| Edition | 21st |
| Category | Grand Slam |
| Surface | Grass |
| Location | Newport, R.I., United States (M) Philadelphia, PA, United States (W) |
| Champions | |
| Men's singles | |
 William Larned[1] | |
| Women's singles | |
| Elisabeth Moore[1] | |
| Men's doubles | |
| Holcombe Ward / Dwight Davis[1] | |
| Women's doubles | |
| Juliette Atkinson / Myrtle McAteer[1] | |
| Mixed doubles | |
| Marion Jones / Raymond Little[1] | |
List of champions of the 1901 U.S. National Championships tennis tournament (now known as the US Open). The men's tournament was held from August 19 to August 27 on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The women's tournament was held from June 25 to June 29 on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, Pennsylvania. It was the 21st U.S. National Championships and the second Grand Slam tournament of the year.