| Official Name: | Otter Creek Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Crawford |
| Area Total Km2: | 91.89 |
| Area Land Km2: | 91.82 |
| Area Water Km2: | 0.07 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.48 |
| Area Land Sq Mi: | 35.45 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.08 |
| Population As Of: | 2000 |
| Population Total: | 1359 |
| Population Density Km2: | 14.8 |
| Population Density Sq Mi: | 38.3 |
| Elevation M: | 412 |
| Elevation Ft: | 1352 |
| Coordinates: | 42.165°N -95.3833°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468485 |
Otter Creek Township is a township in Crawford County, Iowa, USA. As of the 2000 census, its population was 1,359.
Otter Creek Township covers an area of 35.48sqmi and contains two incorporated settlements: Kiron and Schleswig. According to the USGS, it contains two cemeteries: Lehfeld and Otter Creek.
The stream of East Otter Creek runs through this township.