The 1985 US Open was a tennis tournament played on outdoor hard courts at the USTA National Tennis Center in New York City in New York in the United States. It was the 105th edition of the US Open and was held from August 27 to September 8, 1985.
See main article: 1985 US Open – Men's singles. Ivan Lendl defeated John McEnroe 7–6(7–1), 6–3, 6–4
See main article: 1985 US Open – Women's singles. Hana Mandlíková defeated Martina Navratilova 7–6(7–3), 1–6, 7–6(7–2)
See main article: 1985 US Open – Men's doubles. Ken Flach / Robert Seguso defeated Henri Leconte / Yannick Noah 6–7(5–7), 7–6(7–1), 7–6(8–6), 6–0
See main article: 1985 US Open – Women's doubles. Claudia Kohde-Kilsch / Helena Suková defeated Martina Navratilova / Pam Shriver 6–7(5–7), 6–2, 6–3
See main article: 1985 US Open – Mixed doubles. Martina Navratilova / Heinz Günthardt defeated Elizabeth Smylie / John Fitzgerald 6–3, 6–4
Tim Trigueiro defeated Joey Blake 6–2, 6–3
Laura Garrone defeated Andrea Holíková 6–2, 7–6
Joey Blake / Darren Yates defeated Patrick Flynn / David Macpherson 3–6, 6–3, 6–4
Andrea Holíková / Radka Zrubáková defeated Mariana Perez-Roldan / Patricia Tarabini 6–4, 2–6, 7–5