| Official Name: | Eagle Creek Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Lake |
| Government Type: | Indiana township |
| Established Title: | founded |
| Established Date: | 1839 |
| Area Total Sq Mi: | 56.01 |
| Area Land Sq Mi: | 55.84 |
| Area Water Sq Mi: | 0.16 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 1719 |
| Population Density Sq Mi: | 29.9 |
| Elevation Footnotes: | [2] |
| Elevation M: | 199 |
| Elevation Ft: | 653 |
| Coordinates: | 41.2822°N -87.2822°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-19306[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453270 |
Eagle Creek Township is one of eleven townships in Lake County, Indiana, United States. As of the 2010 census, its population was 1,668 and it contained 709 housing units.[4]
Eagle Creek Township was established in 1839.[5]
The Kingsbury-Doak Farmhouse was listed in the National Register of Historic Places in 2005.
According to the 2010 census, the township has a total area of, of which (or 99.70%) is land and (or 0.29%) is water.[4]
Eagle Creek Township, along with Cedar Creek Township and West Creek Township, is served by the Tri-Creek School Corporation which includes Lowell High School.