| Official Name: | Gillett Grove Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Clay |
| Area Total Km2: | 93.54 |
| Area Land Km2: | 93.5 |
| Area Water Km2: | 0.04 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.12 |
| Area Land Sq Mi: | 36.1 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.04 |
| Population As Of: | 2000 |
| Population Total: | 385 |
| Population Density Km2: | 4.1 |
| Population Density Sq Mi: | 10.7 |
| Elevation M: | 411 |
| Elevation Ft: | 1348 |
| Coordinates: | 43.0389°N -95.0911°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467910 |
Gillett Grove Township is a township in Clay County, Iowa, USA. As of the 2000 census, its population was 385.
Gillett Grove Township was created in 1873.[1]
Gillett Grove Township covers an area of 36.12sqmi and contains two incorporated settlements: Gillett Grove and Greenville. According to the USGS, it contains one cemetery, Rosehill.
The streams of Elk Creek and Lexington Creek run through this township.