| Official Name: | Clarksville Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Nebraska |
| Subdivision Type2: | County |
| Subdivision Name2: | Merrick |
| Area Total Km2: | 182.4 |
| Area Land Km2: | 180.7 |
| Area Water Km2: | 1.7 |
| Area Total Sq Mi: | 70.42 |
| Area Land Sq Mi: | 69.77 |
| Area Water Sq Mi: | 0.66 |
| Area Water Percent: | 0.93 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 643 |
| Population Density Km2: | auto |
| Elevation M: | 492 |
| Elevation Ft: | 1614 |
| Coordinates: | 41.2547°N -97.8544°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0837921 |
Clarksville Township is one of eleven townships in Merrick County, Nebraska, United States. The population was 643 at the 2020 census.[1] A 2021 estimate placed the township's population at 640.[1]
The Village of Clarks lies within the Township.