| Green Rock | |
| Settlement Type: | Neighborhood |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Henry |
| Pushpin Map: | Illinois |
| Pushpin Map Caption: | Location of Green Rock within Illinois |
| Coordinates: | 41.4731°N -90.3575°W |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone1: | CST |
| Utc Offset1: | -6 |
| Timezone1 Dst: | CDT |
| Utc Offset1 Dst: | -5 |
Green Rock is a neighborhood of the city of Colona in Henry County, Illinois, United States. Once a separate community, Green Rock was named so because it is the place where the Green River meets up with the Rock River.