Olga Modrachová
| Personal information | |
|---|---|
| Nationality | Czech |
| Born | 9 May 1930 Prague, Czechoslovakia |
| Died | 30 January 1995 (aged 64) Brno, Czech Republic |
| Sport | |
| Sport | Athletics |
| Event | High jump |
Olga Modrachová, married Davidová (9 May 1930 – 30 January 1995) was a Czech athlete. She competed in the women's high jump at the 1952 Summer Olympics and the 1956 Summer Olympics.
Her husband was Jiří David, a Czech sprinter.