Greenfield Township is one of seventeen townships in Adair County, Iowa, USA.

[3] Greenfield Township was first settled in 1854.

[5] Greenfield Township covers an area of 5.71 square miles (14.8 km2) and contains one incorporated settlement, Greenfield.

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

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