| LeRoy Van Duyne | |
| Office1: | Member of the Illinois House of Representatives from the 83rd district |
| Term Start1: | January 12, 1983 |
| Term End1: | January 9, 1991 |
| Predecessor1: | District created |
| Successor1: | Jack McGuire |
| Office2: | Member of the Illinois House of Representatives from the 42nd district |
| Term Start2: | January 8, 1975 |
| Term End2: | January 12, 1983 |
| Predecessor2: | District created |
| Successor2: | Suzanne Deuchler |
| Birth Date: | 3 December 1923 |
| Birth Place: | Manhattan, Illinois |
| Death Place: | Joliet, Illinois |
| Party: | Democratic |
LeRoy Van Duyne (December 3, 1923 – November 26, 2003) was an American politician who served in the Illinois House of Representatives from 1975 to 1991.[1] [2]