| Official Name: | Boardman Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Clayton |
| Area Total Km2: | 94.41 |
| Area Land Km2: | 94.41 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.45 |
| Area Land Sq Mi: | 36.45 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 1832 |
| Population Density Km2: | 19.4 |
| Population Density Sq Mi: | 50.3 |
| Elevation M: | 226 |
| Elevation Ft: | 741 |
| Coordinates: | 42.8622°N -91.4247°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467471 |
Boardman Township is a township in Clayton County, Iowa, United States. As of the 2000 census, its population was 1,832.
Boardman Township is named for Elisha Boardman, who settled there in 1836.[1]
Boardman Township covers an area of 36.45sqmi and contains one incorporated settlement, Elkader (the county seat). According to the USGS, it contains three cemeteries: Eastside, Erhardt and Saint Josephs.
The streams of Dry Mill Creek and Roberts Creek run through this township.
Boardman Township contains Elkader Municipal Airport.