List of champions of the 1892 U.S. National Championships (now known as the US Open). The men's tournament was held from August 23 to August 30 on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The women's tournament was held from June 21 to June 25 on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, Pennsylvania. This tournament saw the introduction of the U.S. National Mixed Doubles Championship which was played, like the women's singles and women's doubles competition, at the Philadelphia Cricket Club. It was the 12th U.S. National Championships and the second Grand Slam tournament of the year.
See main article: 1892 U.S. National Championships – Men's singles. 
Oliver Campbell defeated Fred Hovey 7–5, 3–6, 6–3, 7–5
See main article: 1892 U.S. National Championships – Women's singles. 
Mabel Cahill defeated Elisabeth Moore 5–7, 6–3, 6–4, 4–6, 6–2
Oliver Campbell / Bob Huntington defeated Valentine Hall / Edward Hall 6–4, 6–2, 4–6, 6–3
Mabel Cahill / Adeline McKinlay defeated Helen Day Harris / Amy Williams 6–1, 6–3
Mabel Cahill / Clarence Hobart defeated Elisabeth Moore / Rodmond V. Beach 6–3, 6–4