| Mateusz Rzeźniczak | |
| Nationality: | Polish |
| Sport: | Athletics |
| Event: | Sprints |
| Birth Date: | 23 August 1998 |
| Club: | RKS Lodz |
| Coach: | Dominik Kopeć |
Mateusz Rzeźniczak (born 23 July 1998) is a Polish sprinter specializing in the 400 metres. He competed in the men's 4 × 400 metres relay at the 2020 Summer Olympics.[1]
Rzeźniczak represented Poland in the men's 4 × 400 metres relay at the 2020 Summer Olympics and finished in fifth place.[2]