| Official Name: | Butler Township, Calhoun County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Calhoun |
| Area Total Km2: | 92.21 |
| Area Land Km2: | 92.21 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.6 |
| Area Land Sq Mi: | 35.6 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2000 |
| Population Total: | 950 |
| Population Density Km2: | 10.3 |
| Population Density Sq Mi: | 26.7 |
| Elevation Footnotes: | [1] |
| Elevation M: | 372 |
| Elevation Ft: | 1220 |
| Coordinates: | 42.5172°N -94.7364°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-90423[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0467514 |
Butler Township is one of sixteen townships in Calhoun County, Iowa, United States. As of the 2000 census, its population was 950.
Butler Township was created in 1871.[3]
Butler Township covers an area of 35.6sqmi and contains two incorporated settlements: Jolley and Pomeroy. According to the USGS, it contains three cemeteries: Crown Hill, Saint Marys and Union.