| Official Name: | East Grove Township |
| Settlement Type: | Township |
| Unit Pref: | Imperial |
| Image Map1: | Map of Illinois highlighting Lee County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Lee County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Lee |
| Established Title: | Established |
| Established Date: | November 9, 1864 |
| Area Total Sq Mi: | 35.61 |
| Area Land Sq Mi: | 35.55 |
| Area Water Sq Mi: | 0.06 |
| Area Water Percent: | 0.17 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 7.2 |
| Elevation M: | 230 |
| Elevation Ft: | 755 |
| Coordinates: | 41.6353°N -89.4525°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 61042, 61310, 61349 |
| Blank Name: | FIPS code |
| Blank Info: | 17-103-21865 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 242 |
East Grove Township is one of twenty-two townships in Lee County, Illinois, United States. As of the 2010 census, its population was 256 and it contained 115 housing units.[2]
East Grove was created from Hamilton Township on November 9, 1864.
According to the 2010 census, the township has a total area of, of which (or 99.83%) is land and (or 0.17%) is water.[2]
The township contains these three cemeteries: Saint Mary's, Stevens and Williams.