| Official Name: | Fredericksburg Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Chickasaw |
| Area Total Km2: | 93.02 |
| Area Land Km2: | 93.01 |
| Area Water Km2: | 0.01 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.92 |
| Area Land Sq Mi: | 35.91 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0.01 |
| Population As Of: | 2000 |
| Population Total: | 982 |
| Population Density Km2: | 10.6 |
| Population Density Sq Mi: | 27.3 |
| Elevation M: | 351 |
| Elevation Ft: | 1152 |
| Coordinates: | 42.9517°N -92.1389°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467866 |
Fredericksburg Township is one of twelve townships in Chickasaw County, Iowa, USA. As of the 2000 census, its population was 982.
Fredericksburg Township was organized in 1857. It is named for Frederick Padden, an early settler.[1]
Fredericksburg Township covers an area of 35.92sqmi and contains the eastern portion of one incorporated settlement, Fredericksburg. According to the USGS, it contains two cemeteries: Maple Grove and Rose Hill.
Fredericksburg Township contains one airport or landing strip, Klotz Landing Field.