| Official Name: | Harrison Township |
| Settlement Type: | Township |
| Nickname: | "Millcreekers" |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Pulaski |
| Government Type: | Indiana township |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 31.6 |
| Area Land Sq Mi: | 31.51 |
| Area Water Sq Mi: | 0.09 |
| Area Water Percent: | 0.28 |
| Population As Of: | 2020 |
| Population Total: | 590 |
| Population Density Sq Mi: | auto |
| Elevation M: | 217 |
| Elevation Ft: | 712 |
| Coordinates: | 41.0375°N -86.5158°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 46939, 46960, 46985, 46996 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 453395 |
Harrison Township is one of twelve townships in Pulaski County, Indiana, United States. As of the 2020 census, its population was 590 and it contained 265 housing units.[1]
Harrison Township was organized in 1841, and named for William Henry Harrison (1773–1841), the ninth President of the United States (1841).[2]
According to the 2010 census, the township has a total area of, of which (or 99.72%) is land and (or 0.28%) is water.[3]
Harrison Township residents may obtain a free library card from the Pulaski County Public Library in Winamac.[4]