1902 U.S. National Championships – Men's singles

Defending champion William Larned defeated Reginald Doherty in the Challenge Round, 4–6, 6–2, 6–4, 8–6 to win the men's singles tennis title at the 1902 U.S. National Championships. The event was held at the Newport Casino in Newport, R.I., United States. Doherty had defeated Malcolm Whitman in the All Comers' Final.