| Tunnel Hill | |
| Settlement Type: | Unincorporated community |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Johnson |
| Subdivision Type3: | Township |
| Pushpin Map: | Illinois#USA |
| Pushpin Map Caption: | Location of Tunnel Hill within Illinois |
| Coordinates: | 37.5236°N -88.8386°W |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone1: | CST |
| Utc Offset1: | -6 |
| Timezone1 Dst: | CDT |
| Utc Offset1 Dst: | -5 |
| Postal Code Type: | Postal code |
| Postal Code: | 62972 |
| Area Code: | 618 |
Tunnel Hill is an unincorporated community in northwestern Johnson County, Illinois. It is best known for its namesake railroad tunnel that gives the name to the Tunnel Hill State Trail, a rails-to-trails project developed by the Illinois Department of Natural Resources.