| Country (sports) |  Australia |
|---|---|
| Born | (1909-05-28)28 May 1909[1] Cottesloe, Western Australia |
| Died | 30 January 1994(1994-01-30) (aged 84) |
| Singles | |
| Grand Slam singles results | |
| Australian Open | SF (1931) |
| French Open | 4R (1935) |
| Wimbledon | 3R (1933, 1934) |
| US Open | 3R (1933) |
| Doubles | |
| Grand Slam doubles results | |
| Australian Open | W (1936, 1937) |
| French Open | F (1935) |
| Wimbledon | QF (1934) |
| Mixed doubles | |
| Grand Slam mixed doubles results | |
| Australian Open | F (1937) |
| Wimbledon | QF (1935) |
Donald Paterson Turnbull (28 May 1909 – 30 January 1994) was a professional tennis player from Australia. He won the men's doubles title at the Australian Championships twice, in 1936 and 1937.[2] Turnbull represented Australia in three Davis Cup ties, including the 1933 Europe Zone final against Great Britain.[3] Turnbull beat defending champion Edgar Moon at the 1931 Australian Championships. Turnbull's forehand was in fine form and Moon made the mistake of not targeting Turnbull's weaker backhand. Turnbull came from 2–0 down in the fifth set to win.[4] Turnbull lost in the semifinals to Jack Crawford in straight sets.
| Result | Year | Championship | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Loss | 1934 | Australian Championships | Grass | Adrian Quist |
 Pat Hughes Fred Perry |
8–6, 3–6, 4–6, 6–3, 3–6 |
| Loss | 1935 | French Championships | Clay | Vivian McGrath |
Jack Crawford Adrian Quist |
1–6, 4–6, 2–6 |
| Win | 1936 | Australian Championships | Grass | Adrian Quist |
Jack Crawford Vivian McGrath |
6–8, 6–2, 6–1, 3–6, 6–2 |
| Win | 1937 | Australian Championships | Grass | Adrian Quist |
John Bromwich Jack Harper |
6–2, 9–7, 1–6, 6–8, 6–4 |
| Loss | 1939 | Australian Championships | Grass | Colin Long |
John Bromwich Adrian Quist |
4–6, 5–7, 2–6 |
| Result | Year | Championship | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Loss | 1937 | Australian Championships | Grass | Dorothy Stevenson |
Harry Hopman Nell Hall Hopman |
6–3, 3–6, 2–6 |
