1898 U.S. National Championships – Men's singles

Men's singles
1898 U.S. National Championships
Champion Malcolm D. Whitman
Runner-up Robert Wrenn
Scorew/o

Malcolm Whitman defeated Dwight F. Davis in the All Comers final, 3–6, 6–2, 6–2, 6–1 to win the men's singles tennis title at the 1898 U.S. National Championships. Two-time reigning champion Robert Wrenn did not defend his title.