| Official Name: | Warren Township |
| Settlement Type: | Township |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Clinton |
| Government Type: | Indiana township |
| Established Title: | Organized |
| Established Date: | 1834 |
| Area Total Sq Mi: | 29.44 |
| Area Land Sq Mi: | 29.44 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 596 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [2] |
| Elevation M: | 262 |
| Elevation Ft: | 860 |
| Coordinates: | 40.395°N -86.4189°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-80090[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453974 |
Warren Township is one of fourteen townships in Clinton County, Indiana, United States. As of the 2020 census, its population was 596 (down from 619 at 2010[4]) and it contained 255 housing units.
Originally part of Jackson Township, Warren was made a separate township in 1834. The first settler in the area was A. F. Whiteman who located on Section 23 in 1830.[5]
The John Young House was listed on the National Register of Historic Places in 1994.
According to the 2010 census, the township has a total area of, all land.[4]
The township contains six cemeteries: Campbell, Grays, Old Liberty, Old Prophet, Sims and Veneman.