1908 U.S. National Championships (tennis)

1908 U.S. National Championships
DateAugust 18–29 (M)
June 22–27 (W)
Edition28th
CategoryGrand Slam
SurfaceGrass
LocationNewport, R.I., United States (M)
Philadelphia, PA, United States (W)
Champions
Men's singles
William Larned
Women's singles
Maud Barger-Wallach
Men's doubles
Fred Alexander / Harold Hackett
Women's doubles
Evelyn Sears / Margaret Curtis
Mixed doubles
Edith Rotch / Nathaniel Niles

The 1908 U.S. National Championships (now known as the US Open) was a tennis tournament that took place in June and August of 1908.

The women's tournament was held from June 22 to June 27 on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, Pennsylvania. The men's tournament was held from August 18 to August 29 on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. It was the 28th U.S. National Championships and the second Grand Slam tournament of the three played that year.