| Ján Ilavský | |
| Nationality: | Slovak |
| Sport: | Cross-country skiing |
| Birth Date: | 27 May 1942 |
| Birth Place: | Važec, Slovak Republic |
Ján Ilavský (born 27 May 1942) is a Slovak cross-country skier. He competed in the men's 50 relay event at the 1972 Winter Olympics.[1]