| Official Name: | Prairie Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Henry |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 40.73 |
| Area Land Sq Mi: | 39.74 |
| Area Water Sq Mi: | 0.99 |
| Area Water Percent: | 2.43 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 5999 |
| Population Density Sq Mi: | 138.8 |
| Elevation M: | 319 |
| Elevation Ft: | 1047 |
| Coordinates: | 40.0172°N -85.3547°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0453768 |
Prairie Township is one of thirteen townships in Henry County, Indiana, United States. As of the 2010 census, its population was 5,517 and it contained 1,346 housing units.[2]
According to the 2010 census, the township has a total area of, of which (or 97.57%) is land and (or 2.43%) is water.[2] The streams of Aqua Run, Battle Brook, Brave Run, Brown Run, Brown Run, Cemetery Run, Chief Run, Colony Creek, Green Run, Harvey Run, Hillside Brook, Lavender Run, Lick Branch, Little Buck Creek, Moon Brook, Moonshine Run, Mount Run, Port Run, Red Brook, Red Run, Slo Run, Small Branch, Spring Run, Summit Brook and Yellow Run run through this township.
(This list is based on USGS data and may include former settlements.)
The township contains six retired cemeteries: Beech Grove, Harvey, Lebanon, Livezey, Evans and Powers.