| Official Name: | Buffalo Township, Buchanan County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Buchanan |
| Area Total Km2: | 94.62 |
| Area Land Km2: | 94.62 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.53 |
| Area Land Sq Mi: | 36.53 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2000 |
| Population Total: | 560 |
| Population Density Km2: | 5.9 |
| Population Density Sq Mi: | 15.3 |
| Elevation Footnotes: | [1] |
| Elevation M: | 326 |
| Elevation Ft: | 1070 |
| Coordinates: | 42.5994°N -91.7861°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-90384[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0467501 |
Buffalo Township is one of sixteen townships in Buchanan County, Iowa, United States. As of the 2000 census, its population was 560. It was established in 1852.[3]
Buffalo Township covers an area of 36.53sqmi and contains two incorporated settlements: Aurora and Stanley. According to the USGS, it contains two cemeteries: Spangler and Stanley.