| Official Name: | Clark Township |
| Settlement Type: | Township |
| Pushpin Map: | Arkansas |
| Pushpin Map Caption: | Location in Arkansas |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Pope |
| Established Title: | Established |
| Established Date: | prior to 1836[1] |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 31.79 |
| Area Land Sq Mi: | 25.55 |
| Area Water Sq Mi: | 6.24 |
| Population As Of: | 2010 |
| Population Total: | 3,386 |
| Population Density Sq Mi: | 132.5 |
| Elevation Ft: | 361 |
| Coordinates: | 35.3292°N -93.2461°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | Zip Code |
| Postal Code: | 72847 (London) |
| Area Code: | 479 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 69700 |
Clark Township is one of nineteen current townships in Pope County, Arkansas, USA.[2] As of the 2010 census, its unincorporated population was 3,386. The Arkansas Nuclear One power plant is located here near the city of London, just outside Russellville.
According to the United States Census Bureau, Clark Township covers an area of 31.79sqmi; 25.55sqmi of land and 6.24sqmi of water. Clark Township gave part of its area to Bayliss Township in 1876.