Cynthia Doerner
| Full name | Cynthia Doerner Sieler |
|---|---|
| Country (sports) |
 Australia
|
| Born | 11 February 1951 |
| Height | 168 cm (5 ft 6 in) |
| Plays | Right-handed |
| Singles | |
| Career record | 0–1 |
| Career titles | 3 |
| Grand Slam Singles results | |
| Australian Open | QF (1979) |
| French Open | 3R (1976) |
| Wimbledon | 3R (1976, 1977, 1979) |
| US Open | 2R (1975, 1977, 1978) |
| Doubles | |
| Career record | 0–1 |
| Career titles | 3 |
| Grand Slam Doubles results | |
| Australian Open | SF (1973) |
| French Open | SF (1977) |
| Wimbledon | QF (1973) |
| US Open | 3R (1977) |
| Grand Slam Mixed Doubles results | |
| French Open | QF (1973) |
| Wimbledon | 3R (1979) |
Cynthia Doerner (née Sieler) (born 11 February 1951) is an Australian former international tennis player. She competed in the Australian Open 4 times, from 1973 to 1979.
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