| Official Name: | Hamlin Township, Audubon County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Audubon |
| Area Total Km2: | 92.76 |
| Area Land Km2: | 92.71 |
| Area Water Km2: | 0.05 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.82 |
| Area Land Sq Mi: | 35.79 |
| Area Water Sq Mi: | 0.02 |
| Population As Of: | 2010 |
| Population Total: | 252 |
| Population Density Km2: | 2.7 |
| Elevation Footnotes: | [1] |
| Elevation M: | 407 |
| Elevation Ft: | 1335 |
| Coordinates: | 41.6428°N -94.9172°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-91815[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0467994 |
Hamlin Township is one of twelve townships in Audubon County, Iowa, United States. As of the 2010 census, its population was 252.[3]
Hamlin Township was organized in 1873.[4] It was named for Nathaniel Hamlin, a pioneer settler.[5]
Hamlin Township covers an area of 35.82sqmi and contains no incorporated settlements. According to the USGS, it contains three cemeteries: Adventist, Danish and Seventh Day Adventist.