| Károly Lajthay | |
| Birth Date: | 7 December 1883 |
| Birth Place: | Marosvásárhely, Austria-Hungary (now Târgu Mureş, Romania) |
| Death Place: | Budapest, Hungary |
| Othername: | Lajthay le Derlé Károly Karl Lajthay Charles Le Derlé Charles Lederle |
| Occupation: | Film director Actor |
| Yearsactive: | 1916–1944 |
Károly Lajthay (7 December 1883[1] - 30 August 1946)[2] was a Hungarian film director, actor and screenwriter. He directed 17 films between 1918 and 1944. He also appeared in 13 films between 1916 and 1920. He was born in Marosvásárhely, Austria-Hungary (now Târgu Mureş, Romania). He directed the first film version of Dracula entitled Drakula halála (1921). Lajthay died in Budapest, Hungary.