Joan Mary Koudelka (amụrụ 14 Maachị 1948) bụ onye South Africa bụbu onye ọkpọ egwuregwu tennis[1] [2] na-asọ mpi na mbụ n'okpuru aha mbụ ya bụ Joan Wilshere, tupu ọ lụọ onye egwuregwu tennis Czech bụ Štěpán Koudelka .
Koudelka meriri onye obodo ya Brenda Kirk iji mee agba nke abụọ nke asọmpi Wimbledon b a i1969. [3] ruru eru maka naanị French Open ya n'afọ 1971 ma Evonne Goolagong meriri ya na agba nke mbụ, onye gara n'ihu merie aha ahụ.