| Karl Zischek | |
| Birth Date: | 28 August 1910 |
| Birth Place: | Austria-Hungary |
| Position: | Forward |
| Years1: | 1926–1946 |
| Clubs1: | SC Wacker Wien |
| Caps1: | 265 |
| Goals1: | 107 |
| Nationalyears1: | 1931–1945 |
| Nationalteam1: | Austria |
| Nationalcaps1: | 40 |
| Nationalgoals1: | 24 |
Karl Zischek (28 August 1910 – 6 October 1985) was an Austrian footballer who played as a forward for Austria in the 1934 FIFA World Cup.[1] He also played for SC Wacker Wien.