| Marios Kassianidis | |
| Nationality: | Cypriot |
| Sport: | Long-distance running |
| Event: | Marathon |
| Birth Date: | 16 September 1954 |
Marios Kassianidis (born 16 September 1954) is a Greek-Cypriot long-distance runner. He competed in the marathon at the 1984 Summer Olympics.[1]