Fremont Township is a township in Clarke County, Iowa, USA.

Fremont Township covers an area of 36.29 square miles (93.99 km2) and contains no incorporated settlements.

According to the USGS, it contains four cemeteries: Fremont, Green, Jamison and Union Chapel.

The streams of South Squaw Creek and Walnut Creek run through this township.

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