1913 U.S. National Championships (tennis)

1913 U.S. National Championships
DateAugust 18–26 (M)
June 9–14 (W)
Edition33rd
CategoryGrand Slam
SurfaceGras
LocationNewport, R.I., United States (M)
Philadelphia, PA, United States (W)
VenueNewport Casino (M)
Philadelphia Cricket Club (W)
Champions
Men's singles
Maurice McLoughlin
Women's singles
Mary Browne
Men's doubles
Maurice McLoughlin / Tom Bundy
Women's doubles
Mary Browne / Louise Riddell Williams
Mixed doubles
Mary Browne / Bill Tilden

The 1913 U.S. National Championships (now known as the US Open) took place on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The men's singles tournament ran from August 18 until August 26 while the women's singles and doubles championship took place from June 9 to June 14 at the Philadelphia Cricket Club in Chestnut Hill. It was the 33rd staging of the U.S. National Championships, and the second Grand Slam tennis event of the year. Future seven-time singles champion Bill Tilden won his first U.S. Championship title, partnering Mary Browne in the mixed doubles.