| Official Name: | Marion Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Putnam |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 34.14 |
| Area Land Sq Mi: | 34.11 |
| Area Water Sq Mi: | 0.03 |
| Population As Of: | 2020 |
| Population Total: | 1890 |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Footnotes: | [1] |
| Elevation M: | 250 |
| Elevation Ft: | 820 |
| Coordinates: | 39.6394°N -86.7417°W |
| Area Code: | 765 |
| Blank Name: | FIPS code |
| Blank Info: | 18-47034[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453612 |
Marion Township is one of thirteen townships in Putnam County, Indiana. As of the 2020 census, its population was 1,890 (up from 1,794 at 2010[3]) and it contained 790 housing units.
According to the 2010 census, the township has a total area of, of which (or 99.91%) is land and (or 0.09%) is water.[3]
(This list is based on USGS data and may include former settlements.)