| Ollie Manninen | |
| Nationality: | American |
| Sport: | Long-distance running |
| Event: | Marathon |
| Birth Date: | 9 January 1917 |
| Birth Place: | Worcester, Massachusetts, United States |
| Death Place: | Gardner, Massachusetts, United States |
Ollie Manninen (January 9, 1917 - January 7, 1999) was an American long-distance runner. He competed in the marathon at the 1948 Summer Olympics.[1]