| Official Name: | Sherman Township, Calhoun County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Calhoun |
| Area Total Km2: | 92.15 |
| Area Land Km2: | 90.54 |
| Area Water Km2: | 1.62 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.58 |
| Area Land Sq Mi: | 34.96 |
| Area Water Sq Mi: | 0.62 |
| Population As Of: | 2000 |
| Population Total: | 461 |
| Population Density Km2: | 5.1 |
| Population Density Sq Mi: | 13.2 |
| Elevation Footnotes: | [1] |
| Elevation M: | 375 |
| Elevation Ft: | 1230 |
| Coordinates: | 42.5186°N -94.6197°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-93855[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0468696 |
Sherman Township is one of sixteen townships in Calhoun County, Iowa, United States. As of the 2000 census, its population was 461.
Sherman Township was created circa 1868.[3]
Sherman Township covers an area of 35.58sqmi and contains no incorporated settlements. However, part of the Twin Lakes census-designated place is in the southern part of the township, surrounding North Twin Lake. According to the USGS, it contains three cemeteries: Leith, Memorial Park and Swedish.