Deerfield Township is a township in Kearny County, Kansas, USA.

As of the 2000 census, its population was 1,104.

[1] Deerfield Township covers an area of 46.49 square miles (120.4 square kilometers); of this, 0.31 square miles (0.8 square kilometers) or 0.66 percent is water.

The township contains one cemetery, Deer Field.