| Tadeusz Grzelak | |
| Nationality: | Polish |
| Weight: | 80 kg |
| Sport: | Boxing |
| Birth Date: | 24 December 1929 |
| Birth Place: | Pinsk, Poland |
| Death Place: | Konin, Poland |
| Height: | 183 cm |
Tadeusz Grzelak (24 December 1929 - 14 October 1996) was a Polish boxer. He competed in the men's light heavyweight event at the 1952 Summer Olympics.[1]