| Official Name: | Black Township Posey County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Posey |
| Government Type: | Indiana township |
| Area Total Km2: | 230.37 |
| Area Land Km2: | 225.41 |
| Area Water Km2: | 4.96 |
| Area Total Sq Mi: | 88.95 |
| Area Land Sq Mi: | 87.03 |
| Area Water Sq Mi: | 1.91 |
| Population As Of: | 2020 |
| Population Total: | 9032 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [1] |
| Elevation M: | 128 |
| Elevation Ft: | 420 |
| Coordinates: | 37.9497°N -87.9178°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-05428[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453112 |
Black Township is one of ten townships in Posey County, Indiana. As of the 2020 census, its population was 9,032.[3] The township is the largest both in terms of area and population in Posey County.
Black Township was organized in 1817.[4] The township was named for the Black family of pioneer settlers.[5]
The Frederick and Augusta Hagemann Farm, Mann site, and Mount Vernon site are listed on the National Register of Historic Places.
It is within the Metropolitan School District of Mt. Vernon,[6] which operates Mount Vernon High School.