| Official Name: | Frederika Township, Bremer County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Bremer |
| Area Total Km2: | 49.09 |
| Area Land Km2: | 48.8 |
| Area Water Km2: | 0.28 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 18.95 |
| Area Land Sq Mi: | 18.84 |
| Area Water Sq Mi: | 0.11 |
| Population As Of: | 2010 |
| Population Total: | 363 |
| Population Density Km2: | 7.4 |
| Population Density Sq Mi: | 19.3 |
| Timezone: | Central |
| Utc Offset: | -6 |
| Timezone Dst: | Central |
| Utc Offset Dst: | -5 |
| Elevation Footnotes: | [1] |
| Elevation M: | 305 |
| Elevation Ft: | 1001 |
| Coordinates: | 42.8586°N -92.2858°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-91440[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0467867 |
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 18.95sqmi and contains one incorporated settlement, Frederika. According to the USGS, it contains two cemeteries: Faith and Walling (historical).