Maria Esther Andion Bueno (11 October 1939 – 8 June 2018) was a Brazilian professional tennis player.
Maria Bueno has won 7 Grand Slams.
Singles: 12 (7 titles, 5 runners-up)
| Result | Year | Championship | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Won | 1959 | Wimbledon | Grass | Darlene Hard | 6–4, 6–3 |
| Won | 1959 | U.S. Championships | Grass | Christine Truman | 6–1, 6–4 |
| Won | 1960 | Wimbledon (2) | Grass | Sandra Reynolds | 8–6, 6–0 |
| Lost | 1960 | U.S. Championships | Grass | Darlene Hard | 4–6, 12–10, 4–6 |
| Won | 1963 | U.S. Championships (2) | Grass | Margaret Court | 7–5, 6–4 |
| Lost | 1964 | French Championships | Clay | Margaret Court | 7–5, 1–6, 2–6 |
| Won | 1964 | Wimbledon (3) | Grass | Margaret Court | 6–4, 7–9, 6–3 |
| Won | 1964 | U.S. Championships (3) | Grass | Carole Caldwell Graebner | 6–1, 6–0 |
| Lost | 1965 | Australian Championships | Grass | Margaret Court | 7–5, 4–6, 2–5, ret. |
| Lost | 1965 | Wimbledon | Grass | Margaret Court | 4–6, 5–7 |
| Lost | 1966 | Wimbledon (2) | Grass | Billie Jean King | 3–6, 6–3, 1–6 |
| Won | 1966 | U.S. Championships (4) | Grass | Nancy Richey | 6–3, 6–1 |