| Václav Vacek | |
| Office: | Mayor of Prague |
| Predecessor1: | Petr Zenkl |
| Successor2: | Adolf Svoboda |
| Term Start: | 2 May 1945 |
| Term End: | August 1945 |
| Term Start1: | 1 July 1946 |
| Term End1: | December 1954 |
| Predecessor: | Alois Říha |
| Successor: | Petr Zenkl |
| Birth Date: | 1877 9, df=y |
| Birth Place: | Libochovice, Austria-Hungary (now Czech Republic) |
| Death Place: | Prague, Czechoslovakia (now Czech Republic) |
| Party: | ČSSD (before 1921) KSČ (1921–1960) |
| Alma Mater: | Charles University |
| Profession: | Writer, translator, journalist, lawyer |
Václav Vacek (11 September 187718 January 1960) was a Czech writer and communist politician. He served as a Senator in the National Assembly of Czechoslovakia and after the Prague Uprising as the Mayor of Prague.[1] He was also a founding member of the Communist Party of Czechoslovakia after the schism in Czechoslovak Social Democratic Workers' Party in 1921.[2]
The Prague Metro station Roztyly was named after him until the revolution in 1989.