| Hillar Zahkna | |
| Nationality: | Estonian |
| Sport: | Biathlon |
| Birth Date: | 1 February 1968 |
| Birth Place: | Vastseliina, Estonia |
Hillar Zahkna (born 1 February 1968) is a retired Estonian biathlete. He competed at the 1992 Winter Olympics and the 1994 Winter Olympics.[1] His son is biathlete Rene Zahkna.