| Played For: | Podhale Nowy Targ GKS Katowice KTH Krynica |
| Birth Date: | August 27, 1968 |
| Birth Place: | Nowy Targ, Poland |
| Death Place: | Nowy Targ, Poland |
| Ntl Team: | Poland |
| Height Ft: | 5 |
| Height In: | 10 |
| Weight Lb: | 207 |
| Position: | Right wing |
| Shoots: | Left |
| Career Start: | 1987 |
| Career End: | 2007 |
Janusz Mariusz Hajnos (27 August 1968 – 29 August 2019) was a Polish ice hockey player. He played for Podhale Nowy Targ, GKS Katowice, and KTH Krynica during his career. He also played for the Polish national team at the 1992 Winter Olympics. He led the Polish Ekstraklasa in goal scoring during the 1991–92 season.[1]
Hajnos died on 29 August 2019 in Nowy Targ, two days after his 51st birthday.[2]