| Jan Kielas | |
| Nationality: | Polish |
| Sport: | Middle-distance running |
| Event: | Steeplechase |
| Birth Date: | 9 July 1916 |
| Birth Place: | Danzig, German Empire |
Jan Kielas (9 July 1916 - 28 April 1997) was a Polish middle-distance runner. He competed in the men's 3000 metres steeplechase at the 1952 Summer Olympics.[1]