1904 U.S. National Championships – Men's singles

Men's singles
1904 U.S. National Championships
Champion Holcombe Ward
Runner-up Laurence Doherty
Scorewalkover

Holcombe Ward defeated William Clothier in the all comers' final, 10–8, 6–4, 9–7 to win the men's singles tennis title at the 1904 U.S. National Championships. Reigning champion Laurence Doherty did not defend his title in the Challenge Round. The event was held at the Newport Casino in Newport, R.I., United States.