| Official Name: | Hamilton Township |
| Settlement Type: | Township |
| Unit Pref: | imperial |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Franklin |
| Area Total Km2: | 93.8 |
| Area Land Km2: | 93.8 |
| Area Water Km2: | 0 |
| Area Total Sq Mi: | 36.22 |
| Area Land Sq Mi: | 36.22 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2010 |
| Population Footnotes: | [1] |
| Population Total: | 155 |
| Population Density Km2: | 1.7 |
| Population Density Sq Mi: | 4.3 |
| Elevation M: | 374 |
| Elevation Ft: | 1227 |
| Coordinates: | 42.6875°N -93.3208°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 50071, 50441, 50452 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467992 |
Hamilton Township is one of sixteen townships in Franklin County, Iowa, United States. As of the 2010 census, its population was 155 and it contained 75 housing units.[1]
Hamilton Township was created in 1871. It was named for Andrew Hamilton, a pioneer settler and native of Ireland.[2]
As of the 2010 census, Hamilton Township covered an area of, all land.[1]
The township contains Saint Johns Lutheran Cemetery.