| Alena Prosková | |
| Nationality: | Czech |
| Birth Date: | 29 April 1948 |
| Birth Place: | Plzeň, Czechoslovakia |
| Country: | Czechoslovakia |
| Sport: | Athletics |
| Event: | High jump |
Alena Prosková, married Plischkeová (born 29 April 1948) is a Czech athlete. She competed for Czechoslovakia in the women's high jump at the 1972 Summer Olympics.[1]
Her daughter Sylvia Plischke was a professional tennis player.[1]