L'Obert dels Estats Units o US Open és un torneig Grand Slam de tennis creat l'any 1881. Actualment se celebra durant dues setmanes entre agost i setembre sobre superfície dura al complex USTA Billie Jean King National Tennis Center de Flushing Meadows, Nova York, Estats Units. Des de 1987 és el darrer Grand Slam del calendari.
Des de la seva creació ha canviat en diverses ocasions de seu: Newport (1881−1914), Forest Hills (1915−1920, 1924−1977) i Filadèlfia (1921−1923), fins que des del 1978 es disputa a l'emplaçament actual de Nova York. La primera edició estigué reservada a membres del club United States National Lawn Tennis Association (USNLTA) però en la següent ja es va obrir a tennistes internacionals. Actualment és l'únic Grand Slam en què es disputa un tie-break en el cinquè set, tot i que fins al moment no s'ha produït mai en una final. El tipus de superfície s'ha canviat en dues ocasions, inicialment es disputava sobre gespa (1881-1974), durant tres anys es va disputar sobre terra batuda Har-Tru (1975-1977) i el 1978 es va canviar a la superfície dura actual de DecoTurf.
La competició de dobles mixtos se celebra des de l'any 1887, sis anys després de la seva creació.
Palmarès U.S. National Championships Any Campions Finalistes Resultat 1887 L. Stokes Joseph Clark Laura Knight E.D. Faries 7−5, 6−4 1888 Marian Wright Joseph Clark Adeline Robinson P. Johnson 1−6, 6−5, 6−4, 6−3 1889 Grace Roosevelt A. E. Wright Bertha Townsend C.T. Lee 6−1, 6−3, 3−6, 6−3 1890 20px|Irlanda Mabel Cahill Rodmond Beach Bertha Townsend C.T. Lee 6−2, 3−6, 6−2 1891 20px|Irlanda Mabel Cahill M.R. Wright Grace Roosevelt C.T. Lee 6−4, 6−0, 7−5 1892 20px|Irlanda Mabel Cahill Clarence Hobart Elisabeth Moore Rodmond Beach 6−1, 6−3 1893 Ellen Roosevelt Clarence Hobart Ethel Bankston Robert Willson 6−4, 4−6, 10−6 1894 Juliette Atkinson Edwin Fisher A. McFadden Gustav Remark 6−3, 6−2, 6−1 1895 Juliette Atkinson Edwin Fisher Amy Williams Mantle Fieldings 4−6, 8−6, 6−2 1896 Juliette Atkinson Edwin Fisher (3) Amy Williams Mantle Fieldings 6−2, 6−3, 6−3 1897 Laura Henson D.L. Magruder Maud Banks A. Griffin 6−4, 6−3, 7−5 1898 Carrie Neely Edwin Fisher Helen Chapman J. Hill 6−2, 6−4, 8−6 1899 Elizabeth Rastall Albert Hoskins Jane Craven James Gardner 6−4, 6−0 i retirada 1900 Margaret Hunnewell Alfred Codman T. Shaw George Atkinson 11−9, 6−3, 6−1 1901 Marion Jones Ray Little Myrtle McAteer Clyde Stevens 6−4, 6−4, 7−5 1902 Elisabeth Moore Wylie Grant Elizabeth Rastall Albert Hoskins 6−2, 6−1 1903 Helen Chapman Harry Allen Carrie Neeley W.H. Rowland 6−4, 7−5 1904 Elisabeth Moore Wylie Grant (2) May Sutton F.B. Dallas 6−2, 6−1 1905 Augusta Schultz Hobart Clarence Hobart Elisabet Moore Edward Dewhurst 6−2, 6−4 1906 Sarah Coffin Edward Dewhurst Margaret Johnson John Bertrand Johnson 6−3, 7−5 1907 May Sayers Wallace Johnson Natalie Widley Morris Tilden 6−1, 7−5 1908 Edith Rotch Nathaniel Niles Louise Hammond Ray Little 6−4, 4−6, 6−4 1909 Hazel Hotchkiss Wightman Wallace Johnson Louise Hammond Ray Little 6−2, 6−0 1910 Hazel Hotchkiss Wightman Joseph Carpenter Edna Widley Morris Tilden 6−2, 6−2 1911 Hazel Hotchkiss Wightman Wallace Johnson Edna Widley Morris Tilden 6−4, 6−4 1912 Mary K. Browne R. Norris Williams Eleanora Sears William Clothier 6−4, 2−6, 11−9 1913 Mary K. Browne Bill Tilden Dorothy Green S. Rogers 7−5, 7−5 1914 Mary K. Browne Bill Tilden (2) Margaret Myers J. Rowland 6−1, 6−4 1915 Hazel Hotchkiss Wightman Harry Johnson Molla Bjurstedt Mallory Irving Wright 6−0, 6−1 1916 Eleonora Sears Willis Davis Florence Ballin Bill Tilden 6−4, 7−5 1917 Molla Bjurstedt Mallory Irving Wright Florence Ballin Bill Tilden 10−12, 6−1, 6−3 1918 Hazel Hotchkiss Wightman Irving Wright Molla Bjurstedt Mallory Fred Alexander 6−2, 6−3 1919 Marion Zinderstein Vincent Richards Florence Ballin Bill Tilden 2−6, 11−9, 6−2 1920 Hazel Hotchkiss Wightman Wallace Johnson (3) Molla Bjurstedt Mallory Craig Biddle 6−4, 6−3 1921 Mary K. Browne Bill Johnston Molla Bjurstedt Mallory Bill Tilden 3−6, 6−4, 6−3 1922 Molla Bjurstedt Mallory Bill Tilden Helen Wills Moody Howard Kinsey 6−4, 6−3 1923 Molla Bjurstedt Mallory Bill Tilden (2) Kathleen McKane John Hawkes 6−3, 2−6, 10−8 1924 Helen Wills Moody Vincent Richards Molla Bjurstedt Mallory Bill Tilden 6−8, 7−5, 6−0 1925 Kathleen McKane John Hawkes Ermintrude Harvey Vincent Richards 6−2, 6−4 1926 Elizabeth Ryan Jean Borotra Hazel Hotchkiss Wightman René Lacoste 6−4, 7−5 1927 Eileen Bennett Henri Cochet Hazel Hotchkiss Wightman René Lacoste 6−2, 6−0, 6−3 1928 Helen Wills Moody John Hawkes Edith Cross Edgar Moon 6−1, 6−3 1929 Betty Nuthall George Lott Phyllis Covell Bunny Austin 6−3, 6−3 1930 Edith Cross Wilmer Allison Marjorie Morrill Frank Shields 6−4, 6−4 1931 Betty Nuthall George Lott (2) Anna Harper Wilmer Allison 6−3, 6−3 1932 Sarah Palfrey Fred Perry Helen Jacobs Ellsworth Vines 6−3, 7−5 1933 Elizabeth Ryan Ellsworth Vines Sarah Palfrey George Lott 11−9, 6−1 1934 Helen Jacobs George Lott Elizabeth Ryan Lester Stoefen 4−6, 13−11, 6−2 1935 Sarah Palfrey Enrique Maier Kay Stammers Roderick Menzel 6−4, 4−6, 6−3 1936 Alice Marble Gene Mako Sarah Palfrey Don Budge 6−3, 6−2 1937 Sarah Palfrey Don Budge Sylvia Henrotin Yvon Petra 6−2, 8−10, 6−0 1938 Alice Marble Don Budge Thelma Coyne John Bromwich 6−1, 6−2 1939 Alice Marble Harry Hopman Sarah Palfrey Elwood Cooke 9−7, 6−1 1940 Alice Marble Bobby Riggs Dorothy Bundy Jack Kramer 9−7, 6−1 1941 Sarah Palfrey Jack Kramer Pauline Betz Bobby Riggs 4−6, 6−4, 6−4 1942 Louise Brough Ted Schroeder Patricia Todd Alejo Russell 3−6, 6−1, 6−4 1943 Margaret duPont Bill Talbert Pauline Betz Pancho Segura 10−6, 6−4 1944 Margaret duPont Bill Talbert Dorothy Bundy Donald McNeill 6−2, 6−3 1945 Margaret duPont Bill Talbert Doris Hart Bob Falkenberg 6−4, 6−4 1946 Margaret duPont Bill Talbert (4) Louise Brough Robert Kimbrell 6−3, 6−4 1947 Louise Brough John Bromwich Gertrude Moran Pancho Segura 6−3, 6−1 1948 Louise Brough Tom Brown Margaret duPont Bill Talbert 6−4, 6−4 1949 Louise Brough Eric Sturgess Margaret duPont Bill Talbert 4−6, 6−3, 7−5 1950 Margaret duPont Ken McGregor Doris Hart Frank Sedgman 6−4, 3−6, 6−3 1951 Doris Hart Frank Sedgman Shirley Fry Mervyn Rose 6−3, 6−2 1952 Doris Hart Frank Sedgman (2) Thelma Long Lew Hoad 6−3, 7−5 1953 Doris Hart Vic Seixas Julia Ann Sampson Rex Hartwig 6−2, 4−6, 6−4 1954 Doris Hart Vic Seixas Margaret duPont Ken Rosewall 4−6, 6−1, 6−1 1955 Doris Hart Vic Seixas (3) Shirley Fry Lew Hoad 9−7, 6−1 1956 Margaret duPont Ken Rosewall Darlene Hard Lew Hoad 9−7, 6−1 1957 Althea Gibson Kurt Nielsen Darlene Hard Lew Hoad 6−3, 9−7 1958 Margaret duPont Neale Fraser Maria Bueno Alex Olmedo 6−3, 3−6, 9−7 1959 Margaret duPont Neale Fraser Janet Hopps Bob Mark 7−5, 13−15, 6−2 1960 Margaret duPont Neale Fraser (3) Maria Bueno Antonio Palafox 6−3, 6−2 1961 Margaret Smith Bob Mark Darlene Hard Dennis Ralston Renúncia 1962 Margaret Smith Fred Stolle Lesley Turner Frank Froheling 7−5, 6−2 1963 Margaret Smith Ken Fletcher Judy Tegart Ed Rubinoff 3−6, 8−6, 6−2 1964 Margaret Smith John Newcombe Judy Tegart Ed Rubinoff 10−6, 4−6, 6−3 1965 Margaret Smith Fred Stolle (2) Judy Tegart Frank Froheling 6−2, 6−2 1966 Donna Floyd Fales Owen Davidson Carol Aucamp Ed Rubinoff 6−1, 6−3 1967 Billie Jean King Owen Davidson Rosemary Casals Stan Smith 6−3, 6−2
US Open Any Campions Finalistes Resultat 1968 Mary Ann Eisel Peter Curtis Tory Ann Fretz Gerry Perry 6−4, 7−5 1969 Margaret Smith Court Marty Riessen Françoise Durr Dennis Ralston 7−5, 6−3 1970 Margaret Smith Court Marty Riessen Judy Tegart Frew McMillan 6−4, 6−4 1971 Billie Jean King Owen Davidson Betty Stöve Rob Maud 6−3, 7−5 1972 Margaret Smith Court Marty Riessen (3) Rosemary Casals Ilie Nastase 6−3, 7−5 1973 Billie Jean King Owen Davidson (3) Margaret Smith Court Marty Riessen 6−3, 3−6, 7−6 1974 Pam Teeguarden Geoff Masters Chris Evert Jimmy Connors 6−1, 7−6 1975 Rosemary Casals Dick Stockton Billie Jean King Fred Stolle 6−3, 7−6 1976 Billie Jean King Phil Dent Betty Stöve Frew McMillan 3−6, 6−2, 7−5 1977 Betty Stöve Frew McMillan Billie Jean King Vitas Gerulaitis 6−2, 3−6, 6−3 1978 Betty Stöve Frew McMillan (2) Billie Jean King Ray Ruffels 6−3, 7−6 1979 Greer Stevens Bob Hewitt Betty Stöve Frew McMillan 6−3, 7−5 1980 Wendy Turnbull Marty Riessen Betty Stöve Frew McMillan 7−5, 6−2 1981 Anne Smith Kevin Curren Joanne Russell Steve Denton 6−4, 7−6 1982 Anne Smith Kevin Curren (2) Barbara Potter Ferdi Taygan 6−7, 7−6, 7−6 1983 Elizabeth Smylie John Fitzgerald Barbara Potter Ferdi Taygan 3−6, 6−3, 6−4 1984 Manuela Maleeva Tom Gullikson Elizabeth Smylie John Fitgerald 2−6, 7−5, 6−4 1985 Martina Navrátilová Heinz Gunthardt Elizabeth Smyle John Fitgerald 6−3, 6−4 1986 Raffaella Reggi Sergio Casal Martina Navrátilová Peter Fleming 6−4, 6−4 1987 Martina Navrátilová Emilio Sánchez Vicario Betsy Negelsen Paul Annacone 6−4, 6−7, 7−6 1988 Jana Novotná Jim Pugh Elizabeth Smyle John McEnroe 7−5, 6−3 1989 Robin White Shelby Cannon Meredith McGrath Rick Leach 3−6, 6−2, 7−5 1990 Elizabeth Smylie Todd Woodbridge Nataixa Zvéreva Jim Pugh 6−4, 6−2 1991 Manon Bollegraf Tom Nijssen Arantxa Sánchez Vicario Emilio Sánchez Vicario 6−2, 7−6 1992 Nicole Bradtke Mark Woodforde Helena Sukova Tom Nijssen 4−6, 6−3, 6−3 1993 Helena Sukova Todd Woodbridge Martina Navrátilová Mark Woodforde 6−3, 7−6 1994 Elna Reinach Patrick Galbraith Jana Novotná Todd Woodbridge 6−2, 6−4 1995 Meredith McGrath Matt Lucena Gigi Fernández Cyril Suk 6−4, 6−4 1996 Lisa Raymond Patrick Galbraith Manon Bollegraf Rick Leach 7−6, 7−6 1997 Manon Bollegraf Rick Leach Mercedes Paz Pablo Albano 3−6, 7−5, 7−6 1998 Serena Williams Max Mirnyi Lisa Raymond Patrick Galbraith 6−2, 6−2 1999 Ai Sugiyama Mahesh Bhupathi Kimberly Po Donald Johnson 6−4, 6−4 2000 Arantxa Sánchez Vicario Jared Palmer Anna Kúrnikova Max Mirnyi 6−4, 6−3 2001 Rennae Stubbs Todd Woodbridge Lisa Raymond Leander Paes 6−4, 5−7, 7−6 2002 Lisa Raymond Mike Bryan Katarina Srebotnik Bob Bryan 7−6, 7−6 2003 Katarina Srebotnik Bob Bryan Lina Krasnoroutskaya Daniel Nestor 5−7, 7−5, 7−6 2004 Vera Zvonariova Bob Bryan Alicia Molik Todd Woodbridge 6−3, 6−4 2005 Daniela Hantuchová Mahesh Bhupathi Katarina Srebotnik Nenad Zimonjić 6−4, 6−2 2006 Martina Navrátilová Bob Bryan Květa Peschke Martin Damm 6−2, 6−3 2007 Viktória Azàrenka Max Mirnyi Meghann Shaughnessy Leander Paes 6−4, 7−6 2008 Cara Black Leander Paes Liezel Huber Jamie Murray 7−6, 6−4 2009 Carly Gullickson Travis Parrott Cara Black Leander Paes 6−2, 6−4 2010 Liezel Huber Bob Bryan Květa Peschke Aisam-Ul-Haq Qureshi 6−4, 6−4 2011 Melanie Oudin Jack Sock Gisela Dulko Eduardo Schwank 7−6(4), 4−6, [10−8] 2012 Iekaterina Makàrova Bruno Soares Květa Peschke Marcin Matkowski 6−7(8), 6−1, [12−10] 2013 Andrea Hlavacková Max Mirnyi Abigail Spears Santiago González 7−6(5), 6−3 2014 Sania Mirza Bruno Soares Abigail Spears Santiago González 6−1, 2−6, [11−9] 2015 Martina Hingis Leander Paes Bethanie Mattek-Sands Sam Querrey 6−4, 3−6, [10−7] 2016 Laura Siegemund Mate Pavić Coco Vandeweghe Rajeev Ram 6−4, 6−4 2017 Martina Hingis Jamie Murray Chan Hao-ching Micheal Venus 6−1, 4−6, [10−8] 2018 Bethanie Mattek-Sands Jamie Murray Alicja Rosolska Nikola Mektić 2−6, 6−3, [11−9] 2019 Bethanie Mattek-Sands Jamie Murray Chan Hao-ching Michael Venus 6−2, 6−3 2020 Torneig suspès a causa de la pandèmia de COVID-19 2021 Desirae Krawczyk Joe Salisbury Giuliana Olmos Marcelo Arévalo 7−5, 6−2 2022 Storm Sanders John Peers Kirsten Flipkens Édouard Roger-Vasselin 4−6, 6−4, [10−7] 2023 Anna Danilina Harri Heliövaara Jessica Pegula Austin Krajicek 6−3, 6−4 2024 Sara Errani Andrea Vavassori Taylor Townsend Donald Young 7−6(0), 7−5 2025 Sara Errani Andrea Vavassori (2) Iga Świątek Casper Ruud 6−3, 5−7, [10−6] 2026 Karolína Muchová Jakub Menšík Belinda Bencic Flavio Cobolli 6−3, 1−6, [10−6]
Estadístiques Campions múltiples (parelles) Tennistes en actiu