| Official Name: | Widner Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Knox |
| Government Type: | Indiana township |
| Established Date: | 1804 |
| Founder: | John Widner |
| Area Total Sq Mi: | 41.24 |
| Area Land Sq Mi: | 41.2 |
| Area Water Sq Mi: | 0.04 |
| Population As Of: | 2020 |
| Population Total: | 1094 |
| Population Density Sq Mi: | auto |
| Timezone: | EST |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Footnotes: | [1] |
| Elevation M: | 135 |
| Elevation Ft: | 443 |
| Coordinates: | 38.8644°N -87.3428°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-84158[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 454058 |
Widner Township is one of ten townships in Knox County, Indiana. As of the 2010 census, its population was 1,094 (down from 1,132 at 2010[3]) and it contained 506 housing units.[4]
Widner Township was named for John Widner, a pioneer settler.[5]
Kixmiller's Store at Freedlandville was added to the National Register of Historic Places in 1978.
According to the 2010 census, the township has a total area of, of which (or 99.90%) is land and (or 0.10%) is water.[3]