| Růžena Grebeníčková | |
| Birth Date: | 1 November 1925 |
| Birth Place: | Sušice, Czechoslovakia |
| Death Place: | Prague, Czech Republic |
| Spouse: | Karel Kosík |
| Children: | 3, including Irena Kosíková |
Růžena Grebeníčková (1 November 1925 – 21 July 1997) was a leading Czech literary historian and theorist, and translator.
She was married to the philosopher Karel Kosík with whom she had three children, Antonín (1952), Irena and Štěpán.