| Leo J. Nowicki | |
| Office: | 41st Lieutenant Governor of Michigan |
| Governor: | Frank Murphy |
| Term Start: | January 1, 1937 |
| Term End: | January 1, 1939 |
| Predecessor: | Thomas Read |
| Successor: | Luren Dickinson |
| Birth Date: | 17 February 1904 |
| Birth Place: | Giecz, Poland |
| Party: | Democratic |
Leo J. Nowicki (February 17, 1904 – September 5, 1990) was an American politician who served as the 41st lieutenant governor of Michigan from 1937 to 1939.[1] [2]