The 1969 US Open (formerly known as U.S. National Championships) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, USA. The tournament ran from 28 August until 9 September. It was the 89th staging of the tournament, and the fourth Grand Slam tennis event of 1969. It was the last year at the US Open in which sets were decided by a two-game advantage before the introduction of the tiebreak in 1970. This championship was the first time in grand slam history that two multiple slam sets were accomplished in two different disciplines; Rod Laver won his first multiple slam set in Men's singles, and his fellow countryman Ken Rosewall won it for the first time in the Men's doubles. This would not occur again until the 2012 French Open.

Finals

Men's singles

🇦🇺 Rod Laver defeated 🇦🇺 Tony Roche, 7–9, 6–1, 6–2, 6–2

Women's singles

🇦🇺 Margaret Court defeated 🇺🇸 Nancy Richey, 6–2, 6–2

Men's doubles

🇦🇺 Ken Rosewall / 🇦🇺 Fred Stolle defeated 🇺🇸 Charlie Pasarell / 🇺🇸 Dennis Ralston, 2–6, 7–5, 13–11, 6–3

Women's doubles

🇫🇷 Françoise Dürr / 🇺🇸 Darlene Hard defeated 🇦🇺 Margaret Court / 🇬🇧 Virginia Wade, 0–6, 6–3, 6–4

Mixed doubles

🇦🇺 Margaret Court / 🇺🇸 Marty Riessen defeated 🇫🇷 Françoise Dürr / 🇺🇸 Dennis Ralston, 7–5, 6–3