| Official Name: | Eel River Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Allen |
| Government Type: | Indiana township |
| Area Total Km2: | 94.67 |
| Area Land Km2: | 94.53 |
| Area Water Km2: | 0.14 |
| Unit Pref: | Imperial |
| Area Water Percent: | 0.15 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 4199 |
| Population Density Km2: | 38.2 |
| Elevation M: | 264 |
| Elevation Ft: | 866 |
| Coordinates: | 41.2275°N -85.2564°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 46723, 46748, 46818 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0453273 |
Eel River Township is one of twenty townships in Allen County, Indiana, United States. As of the 2010 census, its population was 3,612.[2]
According to the United States Census Bureau, Eel River Township covers an area of 94.67sqkm; of this, 94.53sqkm is land and 0.14sqkm, or 0.15 percent, is water.[2]
(This list is based on USGS data and may include former settlements.)
The township contains these four cemeteries: Eel River, Fairview, Riverview and Watterson.