| Official Name: | Beaver Township, Butler County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Butler |
| Area Total Km2: | 94.14 |
| Area Land Km2: | 94.11 |
| Area Water Km2: | 0.03 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.35 |
| Area Land Sq Mi: | 36.34 |
| Area Water Sq Mi: | 0.01 |
| Population As Of: | 2020 |
| Population Total: | 1323 |
| Population Density Km2: | 14.1 |
| Population Density Sq Mi: | 36.4 |
| Elevation Footnotes: | [1] |
| Elevation M: | 274 |
| Elevation Ft: | 899 |
| Coordinates: | 42.6053°N -92.6036°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-90153[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0467423 |
Beaver Township is one of sixteen townships in Butler County, Iowa, United States. As of the 2020 census, its population was 1,323.[3]
Beaver Township covers an area of 36.35sqmi and contains one incorporated settlement, New Hartford. According to the USGS, it contains three cemeteries: Behrends, Bidwell and Oak Hill.