Gillett Grove Township is a township in Clay County, Iowa, USA.

Gillett Grove Township was created in 1873.

[1] Gillett Grove Township covers an area of 36.12 square miles (93.6 km2) and contains two incorporated settlements: Gillett Grove and Greenville.

According to the USGS, it contains one cemetery, Rosehill.

This article about the geography of Clay County, Iowa is a stub.