Frederika Township is one of fourteen townships in Bremer County, Iowa, USA.

At the 2000 census, its population was 363.

[3] Frederika Township covers an area of 18.95 square miles (49.1 km2) and contains one incorporated settlement, Frederika.

According to the USGS, it contains two cemeteries: Faith and Walling (historical).

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