The 1942 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York, USA. The tournament ran from 27 August until 7 September. It was the 62nd staging of the U.S. National Championships and due to World War II it was the only Grand Slam tennis event of the year.
Ted Schroeder defeated Frank Parker 8–6, 7–5, 3–6, 4–6, 6–2
Pauline Betz Addie defeated Louise Brough Clapp 4–6, 6–1, 6–4
Gardnar Mulloy / Bill Talbert defeated Ted Schroeder / Sidney Wood 9–7, 7–5, 6–1 
Louise Brough / Margaret Osborne defeated Pauline Betz / Doris Hart 2–6, 7–5, 6–0 
Margaret Osborne / Bill Talbert defeated Patricia Todd / Alejo Russell 3–6, 6–1, 6–4 
- ^ Collins, Bud (2010). The Bud Collins History of Tennis (2nd ed.). [New York]: New Chapter Press. pp. 73–74. ISBN 978-0942257700.
- ^ Collins, p. 477
- ^ Collins, p. 480
- ^ Collins, p. 482