| Mari Szemes | |
| Birth Date: | 7 May 1932 |
| Birth Place: | Šaštín, Czechoslovakia |
| Death Place: | Budapest, Hungary |
| Occupation: | Actress |
| Yearsactive: | 1950–1988 (film & TV) |
Mari Szemes (7 May 1932 – 10 December 1988) was a Hungarian actress. Of Hungarian ethnicity, she was born in Czechoslovakia. She acted at various venues through Hungary, including the National Theatre in Budapest. She was awarded with the Kossuth Prize for her stage acting. From 1950 onwards she also appeared regularly in film and television productions.