The 1936 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 City, United States. The tournament ran from September 3 until September 12. It was the 56th staging of the U.S. National Championships and the fourth Grand Slam tennis event of the year. Fred Perry's victory would remain as the last Grand Slam tournament won by a British man until Andy Murray won the US Open in 2012, 76 years apart.

Finals

Men's singles

🇬🇧 Fred Perry defeated 🇺🇸 Don Budge 2–6, 6–2, 8–6, 1–6, 10–8

Women's singles

🇺🇸 Alice Marble defeated 🇺🇸 Helen Jacobs 4–6, 6–3, 6–2

Men's doubles

🇺🇸 Don Budge / 🇺🇸 Gene Mako defeated 🇺🇸 Wilmer Allison / 🇺🇸 John Van Ryn 6–4, 6–2, 6–4

Women's doubles

🇺🇸 Carolin Babcock / 🇺🇸 Marjorie Gladman Van Ryn defeated 🇺🇸 Helen Hull Jacobs / 🇺🇸 Sarah Palfrey Cooke 9–7, 2–6, 6–4

Mixed doubles

🇺🇸 Alice Marble / 🇺🇸 Gene Mako defeated 🇺🇸 Sarah Palfrey Cooke / 🇺🇸 Don Budge 6–3, 6–2