The 1944 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 30 August until 4 September. It was the 64th staging of the U.S. National Championships and due to World War II it was the only Grand Slam tennis event of the year.
Frank Parker defeated William Talbert 6–4, 3–6, 6–3, 6–3
Pauline Betz Addie defeated Margaret Osborne duPont 6–3, 8–6
Don McNeill / Bob Falkenburg defeated Bill Talbert / Pancho Segura 7–5, 6–4, 3–6, 6–1 
Louise Brough / Margaret Osborne defeated Pauline Betz / Doris Hart 4–6, 6–4, 6–3 
Margaret Osborne / Bill Talbert defeated Dorothy Bundy / Don McNeill 6–2, 6–3 
- ^ Collins, Bud (2010). The Bud Collins History of Tennis (2nd ed.). [New York]: New Chapter Press. pp. 75–76. ISBN 978-0942257700.
- ^ Collins, p. 477
- ^ Collins, p. 480
- ^ Collins, p. 482