| Károly Grecsák | |
| Order: | Minister of Justice of Hungary |
| Term Start: | 18 August 1917 |
| Term End: | 25 January 1918 |
| Predecessor: | Vilmos Vázsonyi |
| Successor: | Vilmos Vázsonyi |
| Birth Date: | 15 November 1854 |
| Birth Place: | Versec, Kingdom of Hungary |
| Death Place: | Budapest, Kingdom of Hungary |
| Profession: | politician, jurist |
| Party: | Party of Hungarian Order |
Károly Grecsák (15 November 1854 - 17 December 1924) was a Hungarian politician and jurist, who served as Minister of Justice between 1917 and 1918. He was a representative of the Moderate Opposition from 1881 to 1891. He was the founder and an editor of the first German language oppositional newspaper, the Budapester Tageblatt. From 1891 he worked as a judge for the Court of Szeged, later moved to Budapest to the Court. After the ministership he became a lawyer in the capital city. He was the founder and chairman of the Party of Hungarian Order which functioned from 1920 to 1922.