List of champions of the 1893 U.S. National Championships tennis tournament (now known as the US Open). The men's singles competition was held from August 22 to August 28 on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The men's doubles event was played at the St. George Cricket Club in Chicago from July 25 through July 29. The women's singles and doubles events, as well as the mixed doubles, were held from June 20 to June 23 on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, Pennsylvania. It was the 13th U.S. National Championships and the second Grand Slam tournament of the year.

Finals

Men's singles

🇺🇸 Robert Wrenn defeated 🇺🇸 Oliver Campbell w/o

Women's singles

🇺🇸 Aline Terry defeated 🇺🇸 Augusta Schultz 6–1, 6–3

Men's doubles

🇺🇸 Clarence Hobart / 🇺🇸 Fred Hovey defeated 🇺🇸 Oliver Campbell / 🇺🇸 Bob Huntington 6–4, 6–4, 4–6, 6–2

Women's doubles

🇺🇸 Aline Terry / 🇺🇸 Harriet Butler defeated 🇺🇸 Augusta Schultz / 🇺🇸 Ms Stone 6–4, 6–3

Mixed doubles

🇺🇸 Ellen Roosevelt / 🇺🇸 Clarence Hobart defeated 🇺🇸 Ethel Bankson / 🇺🇸 Robert Willson Jr. 6–1, 4–6, 10–8, 6–1